Top 30 Hiking & Camping on Amazon (Verified You can Buy)
Camp Journal, Adventure Book - Blank and lined pages, summer camp notebook for girls, kids, boys, men, women, teens, campers, counselors, kids, ... A Creative Way to Capture Your Camp Memories
- Author: Creative Family Story Studio
- Published, Original Language, Unknown: English
Ratings for Majosta (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
Hiking and Camping for Beginners: A Guide to Learn the Basics ,Choose the Best Gear, Prepare for Emergencies and Feel More Confident About Your New Outdoor Hobby
- Author: Woods, Skylar
- Published, Original Language, Unknown: English
Ratings for Majosta (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
Essential Wilderness Survival Skills for Kids: Smart safety tips and confidence –building skills for any adventure: how to protect yourself in the wild, navigate outdoors, build shelters, learn basic
- Author: Rousek, Helena
- Published, Original Language, Unknown: English
Ratings for Essential Wilderness Survival Skills for Kids: Smart safety tips and confidence –building skills for any adventure: how to protect yourself in the wild, navigate outdoors, build shelters, learn basic (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
The Lost Skills of Our Grandparents: 101 Time-Tested Secrets for Homesteading, Frugal Living, and Emergency Preparedness
- Author: Blake, Matilda
- Published: English
Ratings for The Lost Skills of Our Grandparents: 101 Time-Tested Secrets for Homesteading, Frugal Living, and Emergency Preparedness (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com Services LLC | - | ❌ | ❌ | ❌ |
Ouachita National Forest Hiking Guide 2026-2027: Best Hiking Trails, Backpacking Routes, Camping Spots, Scenic Drives, GPS Map Points, and ... Across Arkansas and Oklahoma Wilderness
- Author: Anderson, Lorraine R.
- Published, Original Language, Unknown: English
Ratings for Ouachita National Forest Hiking Guide 2026-2027: Best Hiking Trails, Backpacking Routes, Camping Spots, Scenic Drives, GPS Map Points, and ... Across Arkansas and Oklahoma Wilderness (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
Washington's Pacific Coast: A Guide to Hiking, Camping, Fishing & Other Adventures
- Author: Johnston, Greg
- Published, Original Language, Unknown: English
Ratings for Mountaineers Books (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| World of Books (previously glenthebookseller) | 24 | ❌ | ❌ | ❌ |
| 2nd Life Books ✅ | - | ❌ | ❌ | ❌ |
| DaBookBerm1 | - | ❌ | ❌ | ❌ |
| ThriftBooks-Phoenix | 55 | ❌ | ❌ | ❌ |
How To Survive A Freakin’ Bear Attack: And 127 Other Survival Hacks You'll Hopefully Never Need
- Author: O'Neill, Bill
- Published, Original Language, Unknown: English
Ratings for Lak Publishing (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Jenson Books Inc | 15 | ❌ | ❌ | ❌ |
| GREENWORLD BOOKS | - | ❌ | ❌ | ❌ |
| ThriftBooks-Phoenix | 55 | ❌ | ❌ | ❌ |
| Amazon.com | - | ❌ | ❌ | ❌ |
| ThriftBooks-Baltimore | 70 | ❌ | ❌ | ❌ |
Moon Olympic Peninsula: With Olympic National Park: Coastal Getaways, Rainforests & Waterfalls, Hiking & Camping (Travel Guide)
- Author: Burlingame, Jeff, Moon Travel Guides
- Published, Original Language, Unknown: English
Ratings for Workman Publishing (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
| LuxuryMerchandise (Veteran Owned) | - | ❌ | ❌ | ❌ |
The Hiking and Camping Guide to Colorado's Flat Tops Wilderness (The Pruett Series)
- Author: Marlowe, Al, Christopherson, Karen
- Published, Original Language, Unknown: English
Ratings for WestWinds Press (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| Academic Book Solutions | 57 | ❌ | ❌ | ❌ |
| Scissortail | - | ❌ | ❌ | ❌ |
Base Camp Denver: 101 Hikes in Colorado's Front Range (Base Camp, 2)
- Author: KJ, Pete
- Published, Original Language, Unknown: English
Ratings for Imbrifex Books (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| ThriftBooks-Phoenix | 55 | ❌ | ❌ | ❌ |
The Lone Star Hiking Trail: The Official Guide to the Longest Wilderness Footpath in Texas
- Author: Somers, Karen Borski
- Published, Original Language, Unknown: English
Ratings for Wilderness Press (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
| Goodwill Industries of Houston | 1,491 | ❌ | ❌ | ❌ |
Best Tent Camping: Pennsylvania: Your Car-Camping Guide to Scenic Beauty, the Sounds of Nature, and an Escape from Civilization
- Author: Willen, Matt
- Published, Original Language, Unknown: English
Ratings for Menasha Ridge Press (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| Book_Outpost | 203 | ❌ | ❌ | ❌ |
| ThriftBooks-Baltimore | 70 | ❌ | ❌ | ❌ |
Features
Backpacking: Washington: Overnight and Multiday Routes (Mountaineers Books)
- Author: Romano, Craig
- Published, Original Language, Unknown: English
Ratings for Mountaineers Books (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
| ~Delta~Breeze~ | 5,214 | ❌ | ❌ | ❌ |
The Hiking Logbook
- Author: Peter Pauper Press
- Published, Original Language, Unknown: English
Ratings for PETER PAUPER PRESS (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| World of Books (previously glenthebookseller) | 24 | ❌ | ❌ | ❌ |
| PCV Solutions | - | ❌ | ❌ | ❌ |
| GreatBookDealz | - | ❌ | ❌ | ❌ |
| Amazon.com | - | ❌ | ❌ | ❌ |
| Vivé Liber Books LLC | - | ❌ | ❌ | ❌ |
Woman in the Wild: The Everywoman’s Guide to Hiking, Camping, and Backcountry Travel
- Author: Paul, Susan Joy
- Published, Original Language, Unknown: English
Ratings for Globe Pequot Press (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| ACARTURK TRADE LLC | - | ❌ | ❌ | ❌ |
| World of Books (previously glenthebookseller) | 24 | ❌ | ❌ | ❌ |
| vintage Paradise | - | ❌ | ❌ | ❌ |
| LunariaX | - | ❌ | ❌ | ❌ |
| ThriftBooks-Dallas | 50 | ❌ | ❌ | ❌ |
| ThriftBooks-Chicago | 9 | ❌ | ❌ | ❌ |
Forest Trails And Highways Of The Mount Hood Region (Legacy Edition): The Classic 1920 Guide To Camping And Hiking The Mt. Hood National Forest And ... American Outdoors Destinations Series)
- Author: U.S. Forest Service
- Published, Original Language, Unknown: English
Ratings for Doublebit Press (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
The Arizona Camper's Pocket Companion: Heat, Rattlesnakes, Scorpions, Flash Floods & Fishing - What to Do When It Matters (Cal Redfern- Camping 101 Book 4)
- Author: Redfern, Cal
- Published: English
Ratings for The Arizona Camper's Pocket Companion: Heat, Rattlesnakes, Scorpions, Flash Floods & Fishing - What to Do When It Matters (Cal Redfern- Camping 101 Book 4) (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com Services LLC | - | ❌ | ❌ | ❌ |
Moon Northern California Hiking: Best Hikes Plus Beer, Bites, and Campgrounds Nearby (Moon Hiking Travel Guide)
- Author: Brown, Ann Marie, Kemp, Felicia, Moon Travel Guides
- Published, Original Language, Unknown: English
Ratings for Moon Travel (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
Hiking Adventure Coloring Book For Kids Ages 6–12: Cute Forest Trails, Adorable Wildlife, Mountain Adventures, and Happy Little Explorers (The Great Outdoors Family Coloring Series)
- Author: Pukina, KiaKiwi
- Published, Original Language, Unknown: English
Ratings for Hiking Adventure Coloring Book For Kids Ages 6–12: Cute Forest Trails, Adorable Wildlife, Mountain Adventures, and Happy Little Explorers (The Great Outdoors Family Coloring Series) (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
Bighorn National Forest Travel & Hiking Guide 2026–2027: Best Trails, Scenic Drives, Hidden Lakes, Camping, Wildlife, and Outdoor Adventures Including Cloud Peak Wilderness
- Author: Ford, John G
- Published, Original Language, Unknown: English
Ratings for Bighorn National Forest Travel & Hiking Guide 2026–2027: Best Trails, Scenic Drives, Hidden Lakes, Camping, Wildlife, and Outdoor Adventures Including Cloud Peak Wilderness (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
The Texas Camper's Pocket Companion: The Texas Camper's Pocket Companion (Cal Redfern- Camping 101 Book 5)
- Author: Redfern, Cal
- Published: English
Ratings for The Texas Camper's Pocket Companion: The Texas Camper's Pocket Companion (Cal Redfern- Camping 101 Book 5) (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com Services LLC | - | ❌ | ❌ | ❌ |
Moon Olympic Peninsula: Coastal Getaways, Rainforests & Waterfalls, Hiking & Camping (Travel Guide)
- Author: Burlingame, Jeff
- Published, Original Language, Unknown: English
Ratings for Moon Travel (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| ThriftBooks-Chicago | 9 | ❌ | ❌ | ❌ |
| ThriftBooks-Baltimore | 70 | ❌ | ❌ | ❌ |
Hiking Trail Logbook/Journal: 4" x 6" Pocket Size / Record Outdoor Hiking & Camping Adventures
- Author: Verdugo, Summer
- Published, Original Language, Unknown: English
Ratings for Majosta (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
The Green Guide to Low-Impact Hiking and Camping
- Author: Waterman, Guy, Waterman, Laura
- Foreword: McKibben, Bill
- Published, Original Language, Unknown: English
Ratings for Countryman Press (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
| ThriftBooks-Baltimore | 70 | ❌ | ❌ | ❌ |
The Camper's Pocket Companion: Ten Rules That Work Anywhere — Weather, Wildlife, Water, Fire & Getting Found: What to Do When It Matters (Cal Redfern- Camping 101 Book 1)
- Author: Redfern, Cal
- Published: English
Ratings for The Camper's Pocket Companion: Ten Rules That Work Anywhere — Weather, Wildlife, Water, Fire & Getting Found: What to Do When It Matters (Cal Redfern- Camping 101 Book 1) (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com Services LLC | - | ❌ | ❌ | ❌ |
EVEREST BASE CAMP TREK HIKING GUIDE 2026 - 2027: A step-by-step guide to trekking Everest Base Camp and exploring the Himalayas (The Ultimate Hiking Destinations Series)
- Author: T. COLE, DANIEL
- Published, Original Language, Unknown: English
Ratings for EVEREST BASE CAMP TREK HIKING GUIDE 2026 - 2027: A step-by-step guide to trekking Everest Base Camp and exploring the Himalayas (The Ultimate Hiking Destinations Series) (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
Moon Glacier National Park: Hiking, Camping, Lakes & Peaks (Travel Guide)
- Author: Lomax, Becky
- Published, Original Language, Unknown: English
Ratings for Workman Publishing (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| WÖLF | - | ❌ | ❌ | ❌ |
| Amazon.com | - | ❌ | ❌ | ❌ |
| Books In Demand | 2,780 | ❌ | ❌ | ❌ |
Hiking Over 60: A Modern Guide to Hiking Gear and Techniques for Active Adults
- Author: Philip Werner
- Publisher: Greenliner Publishing LLC
- Narrator: Virtual Voice
- Published, Original Language: English
Ratings for Audible (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Audible, Inc. (US) | - | ❌ | ❌ | ❌ |
Wilderness Camping & Hiking
- Author: Tawrell, Paul
- Published, Original Language, Unknown: English
Ratings for Paul Tawrell (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| Allsentials | - | ✅ | ✅ | ✅ |
| Seattlegoodwill | 113 | ❌ | ❌ | ❌ |
| ThriftBooks-Baltimore | 70 | ❌ | ❌ | ❌ |
| Golden Store usa | - | ❌ | ❌ | ❌ |
| ThriftBooks-Dallas | 50 | ❌ | ❌ | ❌ |
AMC Guide to Winter Hiking and Camping: Everything You Need To Plan Your Next Cold-Weather Adventure
- Author: Clair, Lucas St., Maurer, Yemaya
- Published, Original Language, Unknown: English
Ratings for Appalachian Mountain Club (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| CJ Kids Shoes | - | ❌ | ❌ | ❌ |
| ThriftBooks-Seattle | 86 | ❌ | ❌ | ❌ |
| ThriftBooks-Dallas | 50 | ❌ | ❌ | ❌ |
| AMOR BOOKS | - | ❌ | ❌ | ❌ |
| ThriftBooks-Atlanta | 25 | ❌ | ❌ | ❌ |
Features
Top 10 Hiking & Camping - Verified to Buy (October 2026)
- 1. Camp Journal, Adventure Book - Blank and lined pages, summer...
- 2. Hiking and Camping for Beginners: A Guide to Learn the...
- 3. Essential Wilderness Survival Skills for Kids: Smart safety tips and...
- 4. The Lost Skills of Our Grandparents: 101 Time-Tested Secrets for...
- 5. Ouachita National Forest Hiking Guide 2026-2027: Best Hiking Trails, Backpacking...
- 6. Washington's Pacific Coast: A Guide to Hiking, Camping, Fishing &...
- 7. How To Survive A Freakin’ Bear Attack: And 127 Other...
- 8. Moon Olympic Peninsula: With Olympic National Park: Coastal Getaways, Rainforests...
- 9. The Hiking and Camping Guide to Colorado's Flat Tops Wilderness...
- 10. Base Camp Denver: 101 Hikes in Colorado's Front Range (Base...
Top 10 Hiking & Camping Brands on Amazon
Here is the list of top-rated brands that were evaluated by CherryPicks.
- Majosta
- Mountaineers Books
- Lak Publishing
- Workman Publishing
- WestWinds Press
- Imbrifex Books
- Wilderness Press
- Menasha Ridge Press
- PETER PAUPER PRESS
- Globe Pequot Press
Top 10 Hiking & Camping Sellers: CPR Seller Rank List
CPR sellers rank is based on CherryPicks-AI bestselling ranking system that helps us analyze each seller's sales trends. The List of top seller ranks is our in-house data, essential for our product ranking to help you make the right shopping choice.
- 1. ThriftBooks-Chicago : 1,056,882 Yearly Feedback , Avg. Ratings 4.8
- 2. Jenson Books Inc : 787,915 Yearly Feedback , Avg. Ratings 4.9
- 3. World of Books (previously glenthebookseller) : 643,473 Yearly Feedback , Avg. Ratings 4.8
- 4. ThriftBooks-Atlanta : 639,516 Yearly Feedback , Avg. Ratings 4.8
- 5. ThriftBooks-Dallas : 435,058 Yearly Feedback , Avg. Ratings 4.8
- 6. ThriftBooks-Phoenix : 422,759 Yearly Feedback , Avg. Ratings 4.8
- 7. Academic Book Solutions : 408,326 Yearly Feedback , Avg. Ratings 4.8
- 8. ThriftBooks-Baltimore : 356,847 Yearly Feedback , Avg. Ratings 4.8
- 9. ThriftBooks-Seattle : 314,627 Yearly Feedback , Avg. Ratings 4.8
- 10. Seattlegoodwill : 268,911 Yearly Feedback , Avg. Ratings 4.9
| Rank | Name | Yearly Feedbacks | Avg. Ratings |
|---|---|---|---|
| 🥇 | ThriftBooks-Chicago | 1,056,882 | 4.8 |
| 🥈 | Jenson Books Inc | 787,915 | 4.9 |
| 🥉 | World of Books (previously glenthebookseller) | 643,473 | 4.8 |
| 4 | ThriftBooks-Atlanta | 639,516 | 4.8 |
| 5 | ThriftBooks-Dallas | 435,058 | 4.8 |
| 6 | ThriftBooks-Phoenix | 422,759 | 4.8 |
| 7 | Academic Book Solutions | 408,326 | 4.8 |
| 8 | ThriftBooks-Baltimore | 356,847 | 4.8 |
| 9 | ThriftBooks-Seattle | 314,627 | 4.8 |
| 10 | Seattlegoodwill | 268,911 | 4.9 |
[Get] Hiking & Camping Deals (✅Exclusively for Prime)
What does "Amazon Fulfilled" Mean?
Amazon Fulfilled refers to products handled by Amazon's logistics, which indicates that the product is stored, packed, and shipped by Amazon from one of its fulfillment centers.
When you order a product that is "Amazon Fulfilled," Amazon takes care of the storage, packing, shipping, and customer service for that product. This often ensures quicker delivery and better customer service compared to products that are not fulfilled by Amazon. It also means that the product is eligible for Amazon's return policy.
What does "Prime" Mean?
"Prime" refers to Amazon Prime Member (Join Amazon Prime Now), which indicates eligibility for Prime benefits. When you see "Prime" next to a product on Amazon, This generally means that if you are an Amazon Prime member, you can get free two-day shipping on that product, and sometimes even same-day or one-day shipping depending on your location.
Prime members also have access to other benefits, including 2-Day Shipping, Exclusive Member Deals, Prime Video, Buy With Prime, Amazon Music, Prime Gaming, and more.
Shop Prime Hiking & Camping Deals
What does "Free Shipping" Mean?
"Free Shipping" means that you will not be charged additional fees for the shipping of that product. However, unlike "Prime," which usually guarantees fast two-day shipping, "Free Shipping" doesn't necessarily mean fast shipping.
Sometimes there might be a minimum purchase requirement to qualify for free shipping if you are not a Prime member. For Prime members, the "Free Shipping" usually refers to the free two-day shipping that is one of the benefits of the Prime membership.
Why Should You Trust Us?
Now hundreds and thousands of Sports & Outdoors supplies are available on Amazon, Picking the right one is not easy, and that may take a lot of your time, Right? and What is the best Hiking & Camping to buy for new October 2026?
CherryPicks’s Methodology for Evaluating Hiking & Camping
We developed the CherryRatings-AI system to identify and score reviews and the CherryPicks-AI ranking system that uses TensorFlow framework to generate the best list, It will help us evaluate Sports & Outdoors items that sell on Amazon. The score of items is based on over ten parameters such as analyzing customer review content, product reviewing rating statistics, brand reputation evaluation, comparing product price with features, etc, You can visit How We Rank to learn more in detail.
We collected and analyzed 306 of Hiking & Camping reviews based on our selection criteria. It helped us shortlist the top qualified and rated Hiking & Camping for Sports & Outdoors, We found that most customers choose Hiking & Camping with an average price of $11.95, and the top brands are Audible, Workman Publishing, Countryman Press, Moon Travel, Mountaineers Books, Wilderness Press, Menasha Ridge Press, Appalachian Mountain Club, WestWinds Press, Doublebit Press And Imbrifex Books.
Then our expert-level editors reviewed all those quality items and selected the top 30 Hiking & Camping for you, We have researched hundreds of sellers and picked the top sellers for Sports & Outdoors, including ThriftBooks-Chicago, Jenson Books Inc, World of Books (previously glenthebookseller), ThriftBooks-Atlanta, ThriftBooks-Dallas, ThriftBooks-Phoenix, Academic Book Solutions, ThriftBooks-Baltimore, ThriftBooks-Seattle, Seattlegoodwill, Book_Outpost And Goodwill Industries of Houston. The Camp Journal, Adventure Book - Blank and lined ... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 8 consumers with an average rating of 4.2.
We've helped a lot of satisfied users get the right Books product based on their needs, and save lots of time for them to pick Hiking & Camping to buy.
When it comes to office products and supplies, Judith knows ins and outs as she has years of experience as a procurement officer. We brought her in to this platform so as to share her knowledge and product picking skills so we make the best decision in terms of reliability, durability, aesthetic, and cost.