Google is the largest search engine in the world, which contains a large number of e-books. You can enter the keywords of the book you are looking for in the search box, add pdf, and you will find all kinds of pdf books, which you can read online or download.
Free e-books
Free e-books contain articles by many independent writers and creators. You can read 18 pages of articles for free, and the rest need to be members to read and download. However, it gives registered users the right to download five e-books every month. If you use multiple accounts, you can theoretically download almost one free book you like every day. The books here are more academic, novel, classic books or textbooks.
Internet archive books
Internet archive books is a non-profit library, which contains millions of free books, movies, software and music. You can download and read some books for free, and you need to read some books in the reader. Its collection is very extensive, including hundreds of languages. If you are looking for history and academic books, this must be something you can't ignore.
Bookboon
Bookboon is the largest e-book publisher in the world. It has been focusing on two areas, one is student textbooks, and the other is business e-books. There are nearly 10 thousand kinds of teaching materials pdf which can be downloaded for free. These books are written by professors from top universities in the world. Its books are more about IT, language, engineering, economy, occupation, market and so on.
PDF driver
PDF Drive is an electronic database search engine with nearly 6,543.8 billion e-books. You can inquire, download and use it for free. It has all kinds of books, including magazines, comics, novels, art, science and so on.
Many books
Manybooks is a novel-based digital book platform. Most of the books in it are free, including historical novels, literary novels, science fiction, action adventure, horror and other types of novels.
portable document format
Pdf search engine is a PDF search engine. Different from other search engines, it only contains PDF books, word files, TXT files, RTF files and so on.
Oboko
Obooko is a completely free online service that can help you find wonderful reading materials at any time of the day. You can also give a star, leave feedback for the author, and get the recommendation of other free e-books on the website. You can access popular books written by talented independent writers today: thousands of best-selling novels, offering many types for free.
Jiumo searched for books.
A Chinese book search engine. Basically, many books can be found here. It provides book retrieval in pdf, epub and azw formats. Its server is in Korea, so it has not been put on record, and it will not be blocked due to copyright issues in a short time.
Shu Ge
The online ancient books library is committed to open sharing, introduction and recommendation of rare ancient books, and encourages digital archiving of cultural and artistic works. Share books whose content is restricted by public copyright. This is a non-profit website, and there are no advertisements. It is a personal website. If you have a little gain here, or hope that ancient books can be handed down from generation to generation, you can sponsor this website. )
Gutenberg
Project Gutenberg is a free e-book online library. Michael hart, the founder of Gutenberg Project, invented e-books 197 1 years ago. Gutenberg plans to encourage the creation and distribution of electronic books. The types of books are science and technology, religion, war, history, geography, law, novels and so on.
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