A collection of e-books covering different subject fields.

Mathematical Sciences Research Institute Publications is a book series published by Cambridge University Press. It publishes books covering all branches of Mathematics.

OAPEN (Open Access Publishing in European Networks) is a collaborative initiative to develop and implement a sustainable Open Access publication model for academic books in the Humanities and Social Sciences. The OAPEN Library aims to improve the visibility and usability of high quality academic research by aggregating peer reviewed Open Access publications from across Europe.

This is a collection of more than a million e-book title that are freely accessed over the internet. It covers all major academic disciplines such as Social Sciences and Humanities, Science and Technology and the Arts.

The Online Medieval and Classical Library is a collection of important Classical and Medieval works searchable and organised by the title, author, genre and language.