keyword: Nonfiction – 108 free books.
These books are included in the Directory of Open Access Books. This means that they have been peer-reviewed and are of interest to scholars.
Laura Vaughan et al. (editors)
Chris Benner and Manuel Pastor
Aya Homei and Michael Worboys
Wolfgang Wessels et al. (editors)
Bernardo Sorj and Danilo Martuccelli
Douglas R. Dechow and Daniele C. Struppa