Open Access e-books websites

•  DOAB - Directory of Open Access Books

            Link: https://www.doabooks.org/
          27865 Academic Peer-reviewed Books from 379 Publishers

•  OAPEN- Online Library and Publication platform

           Link : www.oapen.org
          It's an a Platform of contains freely accessible academic books many subject area including                              Engineering and Technology

 

• INTECHOPEN- Peer- reviewed Open access books Where academia and industry create content with global impact

         Link: www.intechopen.com
        Collections /Subject 
         2244- Physical Sciences. Engineering and Technology
         845- Life Sciences
         1493- Health Sciences

 

•  Engineering Books.

         Link: https://www.engbookspdf.net/
           Free engineering books PDF is the best wanted website for all Engineers. Download free                                    engineering  Books online which related to all engineering fields