Hy folks ..
Yesterday I was doing some research in my field of interest ( Medicine ) and I found this amazing source - InTechOpen -
Free Academic Open Access Books, Journals and Research Papers | InTechOpen - Online reading platform with over than 300 scientific books.
Books are Open Access - so... It is free to read and share..

I am reading "Modern Pacemakers" now, book is great. And I attend to read "Health Management".
And as far as I could see, they are peer reviewed by respectable editors.
See ya!