The Internet's PDF Search Engine

Top 25 Free PDF Book Sites

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Reading is the best way for you to learn and get to know people and the world better. It is possible to read PDF with many apps and devices, so it would be great if we could download PDF e-books for free. This is why I felt it was necessary to search the Internet for the top 34 best free PDF book websites. You can either download or read free PDF books online.

BONUS: PDF Cache offers an extensive library of Free PDF books. You can browse the PDF Books category or simply perform a search on the site for the book that you are looking for. If we don’t have the book you’re looking for available, you can send us a message via the contact page or even send us a link to the book and we will add it to our website.

1. Bookboon

Bookboon currently is the largest online publisher of eBooks in the world, with more than 75 million downloads each year of our business e-books and textbooks. It publishes student literature for business, engineering, and IT students. Their textbooks for students, which number over a thousand, are all free and easily accessible in PDF format. All of them were written by top professors at the best universities around the world exclusively for Bookboon.

2. Bookyards

Bookyards offers a free online library that contains thousands of ebooks. Its mission is to become ‘The Library to the World’. All information, books, educational materials, reference materials, documents and other content will be available to everyone with an internet connection. It will make it easy to use, interesting, and useful by providing it as a PDF.

3. Christian Classics Ethereal Library

Christian Classics Electronic Library provides digital copies of Christian scriptures and literature. The mission of CCEL is to promote the study and edification of classic Christian literature and build the church.

4. Digi Libraries

Digi Libraries is a digital library that offers free eBooks to anyone who wants them. They have a wide selection of eBooks in digital format, and the number of eBooks they offer is growing every day. Browse the categories to the left, or use the search box to download free ebooks. This site provides fast, quality and reliable services to download and read eBooks.

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5. epubBooks

epubBooks allows you to self-publish and distribute ebooks. All ebooks available on this site can be downloaded for free and read on any of the many eReaders. The majority of the books published by epubBooks is classic fiction. They range from the 20th century to the ancient Greeks.

6. Feedbooks

Feedbooks provides a digital library and cloud publishing for original and public domain books. This website provides e-books in a variety of formats including EPUB, Kindle and PDF. Feedbooks distributes millions to a growing readership each month.

7. FreeBookCenter

FreeBookCenter provides links to thousands free technical books online. You can either download the books or view them online. They include Computer Science, Science, and Medical.

8. Free eBook

A free eBook is available on a variety of topics, including computers, business, fiction, marketing, philosophy, pshychology and religious, science, travel, and other subjects. You must be a member to download any book. You can download any book from the website by becoming a member. Most books can be downloaded in pdf format.

9. Library of Congress

Library of Congress has the largest library worldwide, housing millions of books, recordings and photographs. The Library is the U.S. Congress’ main research arm and home. Copyright Office.

10. Many Books

Many Books was created in 2004 in the hope of providing a large library of digital books for free. You will find many classics on this site, as many of the eBooks were taken from Project Gutenberg’s archives. Manybooks is now a platform for self-publishing authors. New books are added to the site every day.

11. Liberty Fund

Liberty Fund, a private educational foundation, promotes the study of the ideal society of responsible and free individuals. The Foundation finances, oversees and develops its own educational activities in order to encourage thought and debate on long-lasting intellectual issues related to liberty.

12. Open Library

Open Library aims to create an online page for every book published. It collects information about books from, the Library of Congress and other libraries. Users can also contribute through a Wiki-like interface. It allows you to access many out-of print and public domain books online.

13. Planet eBook

Planet eBook – The home of classic literature for free! Planet eBook aims to make all their eBooks accessible on any device with its mobile-friendly design. Their goal is to publish a limited number of high-quality eBooks that allow readers to enjoy the book without paying for it.

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14. Project Gutenberg

Project Gutenberg is the first to offer free eBooks. These eBooks are free and available in open, long-lasting formats that can be used by almost all computers. These releases are available as plain text, HTML and PDF. Project Gutenberg now has 57,000 eBooks.

15. BuddhaNet

Buddhanet ebooks are a collection of electronic books about Buddhism. This site contains a large collection of eBooks, which were created by Buddha Dharma Education Association Inc. to BuddhaNet.Net. The collection includes a wide range of topics including art, history, and children’s books. It also covers Theravada, Mayahayana and other Buddhist traditions.

16. GoodReads

GoodReads allows users to search the website’s database of books, annotations and reviews. To create library catalogs or reading lists, users can register books and sign up. You can create your own book groups, polls, blogs and discussions. You can also see what your friends are reading, and vice versa.

17. Kobo Books

kobo describes itself as a global leader in eReading and offers a world-class platform for passionate readers to search for and download books. Their website claims that provides “the best digital reading experience” for millions of users in over 190 countries and has one of the largest collections of titles.

18. Free Books

Free eBooks is dedicated to helping users find the best online ebooks. You can contact them if they don’t have what you need or they can point you in the right direction. Downloadable e-books, textbooks, and audio books are available in many popular topics and genres, including christian, horror, romance, and many others.

19. Loyal Books

Loyal books is a website that allows you to freely distribute public domain audiobooks and ebooks. These audio books are free and you can share them with your friends using the sharing button. Loyal Books has the largest selection of free ebooks and audiobooks in public domain.

20. Smashwords

Smashwords has the largest distribution network of indie ebooks. It’s free for authors and publishers to distribute ebooks. You can discover new voices across all genres and categories of the written word by using Smashwords’ Store. The site provides useful tools for personal library management, search, discovery, and discovery once you have registered. Many of our books can be purchased at a reasonable price and are multi-format. More than 70,000 books are available at no cost.

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21. Bookrixbooks

Bookrixbooks offers eBook distribution services for independent authors. Users can also share their writing and connect with others readers to discover new books. It is simple to download your eBook. The button will allow you to download your eBook. The eBooks can be downloaded in epub format and can be read on any smartphone, tablet or eReader.

22. Google Play Books

Google Play Books , an ebook distribution service provided by Google, is . Google Play offers ebooks and audiobooks that can be downloaded and purchased. It boasts over five million titles and is claimed to have the largest collection of ebooks in the world. All books can be downloaded in either the EPUB or PDF file formats.

23. FreeComputerBooks

FreeComputerBooks offers a large collection of free online programming, mathematics, engineering, and technical books, lecture notes, and tutorials. It’s very easily categorized by topic, with 13 categories at the top and more than 200 sub-categories. You can quickly find titles using both the pattern and keyword search engines. Google powers the keywords search engine. This website contains Hyperlinks to all the pages in the world. Everything on this website is therefore 100% free.

24. FreeTechBooks

FreeTechBooks offers free online programming, engineering, and computer science books, textbooks, and lecture notes. They are all legally and freely accessible over the Internet because they are hosted on websites owned by the authors. They don’t host books. They provide links to PDF and HTML versions of the books that can be downloaded from the publisher or authors’ websites.

25. Planet Publish

Planet Publish is open to everyone who has an interest in eBooks. The books have been taken directly from the Planet PDF website, which caters to professional Web or print publishers looking for appropriate tools.

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