Best Engineering (Oct. 2026) - Rated by CherryPicks' Experts

At a Glance: Our Top Picks

Top 1

Basic Machines and How They Work

9.9
CPR Score
Top 2

Civil Engineering: A Very Short Introduction (Very Short Introductions)

9.7
CPR Score
Top 3

Precision Machining Technology

9.6
CPR Score
Tips

Top Rated Engineering list rated by Cherry Picks Reviews, Based on our evaluations of 306 Books and the analysis of over 6,962 readers' reviews, book popularity, author's reputation and book awards, We picked the top 30 Engineering for you to learn Engineering & Transportation, Textbooks.

* CherryPicks.Reviews is reader-supported, Our editor review, and recommend the best products based on extensive data analysis, if you click on the product links, we may earn a commission through qualifying products purchased.

The Best Engineering Rated by CherryPicks

Market Overview
Engineering Reviewed
  • Reviews Analyzed: 6,962 Items
  • CPR Avg. Rating: 8.5 / 10
30 Products Evaluated
  • Highest Price: $401.92
  • Lowest Price: $5.00
  • Avg. Price: $45.47
Price Disclaimer

Top 30 Engineering on Amazon (Verified You can Buy)

Basic Machines and How They Work

Dover Publications
204figs.
6.38 x 0.26 x 9.34 inches
0.549 pounds
  • Author: Naval Education And Training Program
  • Published, Original Language, Unknown: English

Ratings for Dover Publications (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ✅ ✅ ✅
GREENWORLD BOOKS - ❌ ❌ ❌
WonderBook 64 ❌ ❌ ❌
Zoom Books Company 3,671 ❌ ❌ ❌
FindAnyBook - ❌ ❌ ❌

Civil Engineering: A Very Short Introduction (Very Short Introductions)

Oxford University Press, USA
6.7 x 4.3 x 0.5 Inches
0.2491 pounds
  • Author: Muir Wood, David
  • Published, Original Language, Unknown: English

Ratings for Oxford University Press, USA (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Blackwell's U.K. *dispatched from UK* 4,586 ✅ ✅ ✅
Amazon.com - ✅ ✅ ✅
Blue Vase Books 1,914 ❌ ❌ ❌
Bay State Book Company 5,655 ❌ ❌ ❌
Bahamut Media 2,218 ❌ ❌ ❌
GREENWORLD BOOKS - ❌ ❌ ❌
Top 3

Precision Machining Technology

Cengage Learning
9.0 x 1.25 x 11.0 inches
3.9992 Pounds
  • Author: Hoffman, Peter, Hopewell, Eric
  • Published, Original Language, Unknown: English

Ratings for Cengage Learning (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
studentbargains3 3,217 ✅ ✅ ✅
Apex_media🍏 38 ✅ ✅ ✅
BooksRun 2,783 ✅ ✅ ✅
doraemoni 1,682 ✅ ✅ ✅
itemspopularsonlineaindemand 922 ✅ ✅ ✅
SuperBookDeals--- 1,121 ❌ ❌ ❌
eCampus_ 3,419 ❌ ❌ ❌

A Dictionary of Electronics and Electrical Engineering (Oxford Quick Reference)

Oxford University Press, USA
1.4 x 5.1 x 7.7 inches
1.0979 Pounds
  • Author: Butterfield, Andrew, Szymanski, John
  • Published, Original Language, Unknown: English

Ratings for Oxford University Press, USA (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ✅ ✅ ✅
LuxuryMerchandise (Veteran Owned) - ❌ ❌ ❌
Top 5

SysML Distilled: A Brief Guide to the Systems Modeling Language

PEARSON EDUCATION
7.0 x 0.62 x 9.13 inches
1.0604 pounds
Illustrated
  • Author: Delligatti, Lenny
  • Published, Original Language, Unknown: English

Ratings for PEARSON EDUCATION (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
My Books Town - ❌ ❌ ❌
MegaReads - ❌ ❌ ❌

A Degree in a Book: Electrical And Mechanical Engineering: Everything You Need to Know to Master the Subject - in One Book! (A Degree in a Book, 5)

Arcturus Publishing Ltd
9.8425 x 0.3 x 8.6614 inches
2.2 pounds
  • Author: Baker, Dr David
  • Published, Original Language, Unknown: English

Ratings for Arcturus Publishing Ltd (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ✅ ✅ ✅
HPB-Ruby 746 ❌ ❌ ❌
ThriftBooks-Phoenix 54 ❌ ❌ ❌
GreatBookDealz - ❌ ❌ ❌

Mechanics of Materials For Dummies

Wiley
7.2992 x 1.0 x 9.0984 inches
2.3149 Pounds
Illustrated
  • Author: Allen III, James H.
  • Published, Original Language, Unknown: English

Ratings for Wiley (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ✅ ✅ ✅
BooksRun 2,783 ❌ ❌ ❌
World of Books (previously glenthebookseller) 23 ❌ ❌ ❌
WorthWhile Reads - ❌ ❌ ❌
WeBuyBooks-UK 648 ❌ ❌ ❌
Murfbooks 1,192 ❌ ❌ ❌
Deadstock_Gear - ❌ ❌ ❌
Steals Depot - ❌ ❌ ❌
Bay State Book Company 5,655 ❌ ❌ ❌

Engineering in the Ancient World, Revised Edition

University of California Press
5.5 x 0.6 x 8.25 inches
0.6504 Pounds
  • Author: Landels, J. G.
  • Published, Original Language, Unknown: English

Ratings for University of California Press (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
ThriftBooks-Dallas 49 ❌ ❌ ❌
SmashingDealz - ❌ ❌ ❌
ThriftBooks-Baltimore 70 ❌ ❌ ❌
Amazon.com - ❌ ❌ ❌
Springfield Collectibles - ❌ ❌ ❌
ThriftBooks-Atlanta 24 ❌ ❌ ❌
Top 9

Project Engineering: The Essential Toolbox for Young Engineers

Elsevier
9780750682794
6.45 x 0.8 x 9.02 inches
1.1001 Pounds
  • Author: Plummer, Frederick
  • Published, Original Language, Unknown: English

Ratings for Elsevier (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Pete's Reads - ❌ ❌ ❌
Amazon.com - ❌ ❌ ❌
Blue Vase Books 1,914 ❌ ❌ ❌
GREENWORLD BOOKS - ❌ ❌ ❌
World✓Prime - ❌ ❌ ❌

Engineering Graphics Essentials 5th Edition (Including unique access code)

CRC Press
8.5 x 1.5 x 11.0 inches
3.1989 pounds
  • Author: Plantenburg, Kirstie
  • Published, Original Language, Unknown: English

Ratings for CRC Press (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
SDC Publications - ❌ ❌ ❌
Smart Bookshop - ❌ ❌ ❌
BooksRun 2,783 ❌ ❌ ❌
Pick Up Here - ❌ ❌ ❌
Top 11

Engineering: A Very Short Introduction

Oxford University Press, USA
6.7 x 4.3 x 0.5 inches
0.2491 Pounds
  • Author: Blockley, David
  • Published, Original Language, Unknown: English

Ratings for Oxford University Press, USA (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
GreatBookDealz - ❌ ❌ ❌
ThriftBooks-Dallas 49 ❌ ❌ ❌
ThriftBooks-Baltimore 70 ❌ ❌ ❌
Amazon.com - ❌ ❌ ❌
ThriftBooks-Phoenix 54 ❌ ❌ ❌
Top 12

Refrigeration & Air Conditioning Technology (MindTap Course List)

Cengage Learning
9.0 x 2.0 x 10.75 inches
8.6509 Pounds
  • Author: Silberstein, Eugene, Obrzut, Jason, Tomczyk, John, Whitman, Bill, Johnson, Bill
  • Published, Original Language, Unknown: English

Ratings for Cengage Learning (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ✅ ✅ ✅
TheWorldShop 4,651 ✅ ✅ ✅
campus_bookstore 1,055 ✅ ✅ ✅
Greencrest_Books 659 ✅ ✅ ✅
Apex_media🍏 38 ✅ ✅ ✅
SuperBookDeals--- 1,121 ❌ ❌ ❌
Half-Price Hank's Books - ❌ ❌ ❌
Top 13

Engineers' Practical Databook: A Technical Reference Guide for Students and Professionals

Majosta
6.0 x 0.38 x 9.0 Inches
0.71 pounds
  • Author: Smith, Jay
  • Published, Original Language, Unknown: English

Ratings for Majosta (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
GREENWORLD BOOKS - ❌ ❌ ❌
Canyon Ridge Media - ❌ ❌ ❌
DDV Sales and Resources LLC - ❌ ❌ ❌
Amazon.com - ❌ ❌ ❌
HPB-Red 852 ❌ ❌ ❌
OAKINK - ❌ ❌ ❌
Bay State Book Company 5,655 ❌ ❌ ❌

Programmable Logic Controller (Plc) Tutorial, Siemens Simatic S7-200

Stephen P. Tubbs
8.25 x 0.3 x 11.0 inches
0.7496 Pounds
  • Author: Stephen P. Tubbs
  • Published, Original Language, Unknown: English

Ratings for Stephen P. Tubbs (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ❌ ❌ ❌
BooksRun 2,783 ❌ ❌ ❌

Features

Used Book in Good Condition

NASA Systems Engineering Handbook - Full COLOR Paperback: UPDATED January 27, 2020 R2 - Most Recent Version

Majosta
8.5 x 0.7 x 11.0 inches
1.89 Pounds
  • Author: Space Administration, National Aeronautics and
  • Published, Original Language, Unknown: English

Ratings for Majosta (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ❌ ❌ ❌
Top 16

How to Ace Statics with Jeff Hanson

McGraw-Hill Education
8.4 x 0.9 x 10.7 inches
1.9996 Pounds
  • Author: Hanson, Jeff, Bernal, Ashley, Pitarresi, James M.
  • Published, Original Language, Unknown: English

Ratings for McGraw-Hill Education (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
McGrawHill - ❌ ❌ ❌
Bay State Book Company 5,655 ❌ ❌ ❌
World of Books (previously glenthebookseller) 23 ❌ ❌ ❌
Top 17

INCOSE Systems Engineering Handbook

Wiley
8.0 x 1.0 x 9.9016 inches
1.5498 Pounds
  • Editor: INCOSE
  • Published, Original Language, Unknown: English

Ratings for Wiley (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
ayvax 1,906 ❌ ❌ ❌
itemspopularsonlineaindemand 922 ❌ ❌ ❌
Best Peddler - ❌ ❌ ❌
Apex_media🍏 38 ❌ ❌ ❌
BooksRun 2,783 ❌ ❌ ❌

Mechanical Engineering for Makers: A Hands-on Guide to Designing and Making Physical Things

MAKER MEDIA INC
7.75 x 0.5 x 9.5 inches
2.3149 Pounds
Illustrated
  • Author: Bunnell, Brian, Najia, Samer
  • Published, Original Language, Unknown: English

Ratings for MAKER MEDIA INC (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ✅ ✅ ✅
IFNStore - ❌ ❌ ❌

Confessions of a Recovering Engineer: Transportation for a Strong Town

Wiley
6.2992 x 1.0 x 9.0984 inches
2.3149 Pounds
  • Author: Marohn Jr., Charles L.
  • Published, Original Language, Unknown: English

Ratings for Wiley (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ✅ ✅ ✅
BargainShelf - ❌ ❌ ❌
Top 20

Automotive Technology: Principles, Diagnosis, and Service

PEARSON EDUCATION
9.25 x 2.62 x 12.25 inches
9.8304 Pounds
  • Author: Halderman, James, Ward, Curt
  • Published, Original Language, Unknown: English

Ratings for PEARSON EDUCATION (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ❌ ❌ ❌
Top 21

Student Workbook and Project Manual for Hoffman/Hopewell's Precision Machining Technology

Cengage Learning
8.25 x 0.75 x 10.5 Inches
1.3999 pounds
Student Edition
  • Author: Hoffman, Peter, Hopewell, Eric
  • Published, Original Language, Unknown: English

Ratings for Cengage Learning (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ❌ ❌ ❌
ZT's Books - ❌ ❌ ❌
Top 22

Mathematics for Machine Technology (MindTap Course List)

Cengage Learning
8.25 x 1.0 x 10.5 inches
3.2496 Pounds
  • Author: Peterson, John, Smith, Robert
  • Published, Original Language, Unknown: English

Ratings for Cengage Learning (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Tome Dealers - ❌ ❌ ❌
TEXbooks Plus - ❌ ❌ ❌
doraemoni 1,682 ❌ ❌ ❌
Bookbuilders - ❌ ❌ ❌
Nyarkthotep - ❌ ❌ ❌
Top 23

The Design of Coffee: An Engineering Approach

8.5 x 0.41 x 11.0 inches
0.93 pounds
  • Author: Ristenpart, William, Kuhl, Tonya
  • Published, Original Language, Unknown: English

Ratings for The Design of Coffee: An Engineering Approach (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
BooksRun 2,783 ❌ ❌ ❌
Amazon.com - ❌ ❌ ❌
LionPage - ❌ ❌ ❌

Auto Body Repair Technology (MindTap Course List)

Cengage Learning
8.5 x 1.0 x 10.0 inches
5.5005 pounds
Illustrated
  • Author: Duffy, James, Beaty, Jonathan
  • Published, Original Language, Unknown: English

Ratings for Cengage Learning (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Book Depository US 10 ✅ ✅ ✅
InfiniteBooks_USA 6,623 ✅ ✅ ✅
BooksRun 2,783 ✅ ✅ ✅
Goodbooks Company - ✅ ✅ ✅
Apex_media🍏 38 ❌ ❌ ❌
doraemoni 1,682 ❌ ❌ ❌
🎓 Graduate Standard - ❌ ❌ ❌
✅College-Books-Direct ✅ 160 ❌ ❌ ❌
Woodville Books 555 ❌ ❌ ❌
SuperBookDeals--- 1,121 ❌ ❌ ❌
textbooks_source 278 ❌ ❌ ❌
Tome Dealers - ❌ ❌ ❌

Engineering for Industrial Designers and Inventors: Fundamentals for Designers of Wonderful Things

O'Reilly
7.0 x 0.49 x 9.19 Inches
2.3149 Pounds
  • Author: Ask, Thomas
  • Published, Original Language, Unknown: English

Ratings for O'Reilly (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ✅ ✅ ✅
Zebras Books LLC - ❌ ❌ ❌

Engineering Capstone Design Workbook 3rd Edition: Define, Conceive, Prove, Build, Test, Optimize

8.0 x 1.87 x 10.0 inches
  • Author: Nassersharif Ph.D., Bahram
  • Published, Original Language, Unknown: English

Ratings for Engineering Capstone Design Workbook 3rd Edition: Define, Conceive, Prove, Build, Test, Optimize (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ❌ ❌ ❌
Top 27

The Engineering Behind the Alchemy™: ThermoMAX™ Design, Thermal Performance, Energy Recovery, and Real-World Applications

6.0 x 0.81 x 9.0 inches
  • Author: VanNatta, Jim, Montemayor, Eduardo
  • Published, Original Language, Unknown: English

Ratings for The Engineering Behind the Alchemy™: ThermoMAX™ Design, Thermal Performance, Energy Recovery, and Real-World Applications (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ❌ ❌ ❌

Fundamentals of Astrodynamics: Second Edition (Dover Books on Physics)

Dover Publications
5.51 x 0.87 x 8.98 inches
2.3149 pounds
  • Author: Bate, Roger R., Mueller, Donald D., White, Jerry E., Saylor, William W.
  • Published, Original Language, Unknown: English

Ratings for Dover Publications (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
TEXAS B00KW0RM - ❌ ❌ ❌
Amazon.com - ❌ ❌ ❌
Redux_Books 2,908 ❌ ❌ ❌

The Beginner's Guide to Engineering: Mechanical Engineering

CREATESPACE
8.5 x 0.75 x 11.0 Inches
2.3149 pounds
  • Author: Huber, Mark
  • Published, Original Language, Unknown: English

Ratings for CREATESPACE (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ✅ ✅ ✅
Zoom Books Company 3,671 ❌ ❌ ❌
Stellar Book Company - ❌ ❌ ❌
Bahamut Media 2,218 ❌ ❌ ❌
MegaReads - ❌ ❌ ❌
WonderBook 64 ❌ ❌ ❌

Practical Python for Chemical Engineering: A Problem-Solving Approach

7.5 x 1.56 x 9.25 inches
  • Author: Fortela, Dr. Dhan Lord B., Mikolajczyk, Dr. Ashley P.
  • Published, Original Language, Unknown: English

Ratings for Practical Python for Chemical Engineering: A Problem-Solving Approach (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ❌ ❌ ❌

Top 10 Engineering - Verified to Buy (October 2026)

Top 10 Engineering Brands on Amazon

Here is the list of top-rated brands that were evaluated by CherryPicks.

  • Dover Publications
  • Oxford University Press, USA
  • Cengage Learning
  • PEARSON EDUCATION
  • Arcturus Publishing Ltd
  • Wiley
  • University of California Press
  • Elsevier
  • CRC Press
  • Majosta

Top 10 Engineering 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.

Rank Name Yearly Feedbacks Avg. Ratings
🥇 Book Depository US 928,968 4.7
🥈 World of Books (previously glenthebookseller) 643,617 4.8
🥉 ThriftBooks-Atlanta 635,798 4.8
4 Apex_media🍏 489,628 4.8
5 ThriftBooks-Dallas 435,007 4.8
6 ThriftBooks-Phoenix 423,572 4.8
7 WonderBook 386,450 4.8
8 ThriftBooks-Baltimore 357,684 4.8
9 ✅College-Books-Direct ✅ 208,218 4.8
10 textbooks_source 134,673 4.8
View or download top Engineering seller & rating report
Book Depository US [928968] World of Books (previously glenthebookseller) [643617] ThriftBooks-Atlanta [635798] Apex_media🍏 [489628] ThriftBooks-Dallas [435007] ThriftBooks-Phoenix [423572] WonderBook [386450] ThriftBooks-Baltimore [357684] ✅College-Books-Direct ✅ [208218] textbooks_source [134673] Book Depository US 20% World of Books (previously glenthebookseller) 14% ThriftBooks-Atlanta 14% Apex_media🍏 11% ThriftBooks-Dallas 9% ThriftBooks-Phoenix 9% WonderBook 8% ThriftBooks-Baltimore 8% ✅College-Books-Direct ✅ 4% textbooks_source 3%

[Get] Engineering 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 Engineering 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 Engineering & Transportation, Textbooks 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 Engineering to buy for new October 2026?

CherryPicks’s Methodology for Evaluating Engineering

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 Engineering & Transportation, Textbooks 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 Engineering reviews based on our selection criteria. It helped us shortlist the top qualified and rated Engineering for Engineering & Transportation, Textbooks, We found that most customers choose Engineering with an average price of $45.47, and the top brands are Dover Publications, Wiley, Oxford University Press, USA, McGraw-Hill Education, Cengage Learning, Elsevier And University of California Press. 

Then our expert-level editors reviewed all those quality items and selected the top 30 Engineering for you, We have researched hundreds of sellers and picked the top sellers for Engineering & Transportation, Textbooks, including Book Depository US, World of Books (previously glenthebookseller), ThriftBooks-Atlanta, Apex_media🍏, ThriftBooks-Dallas, ThriftBooks-Phoenix, WonderBook, ThriftBooks-Baltimore, ✅College-Books-Direct ✅, textbooks_source, Woodville Books And WeBuyBooks-UK. The Basic Machines and How They Work are available for purchase right now, and The seller of #1 rank product has received honest feedback from 1,052 consumers with an average rating of 4.6.

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 Engineering to buy.


Written By John Hilario

John Vincent Hilario is aspiring to become a computer engineer, currently matriculated in the City University of New York. While he enjoys the technical aspects of engineering, John Vincent holds a passion for literature and politics. Writing for ‘CherryPicks’ as a technical writer, he introduces some of the beauty that ‘non-technical writing’ has to offer while at the same time, delivering facts.