where i can get free PDF books, guide, library and tutorials for my reference of electronics subjects

 

Have you looked at the home page of our website? There are plenty of on-line viewable and downloadable tutorials right here.

http://www.allaboutcircuits.com/

There is the NEETS series of publications, available for download here:
http://www.tpub.com/content/neets/index.htm

 

yea i saw that its more helpfull but i like to go a in-depth in this subject so only i asked about more books for reffering

 

Hello,

There is a website with a lot of links to all kinds of electronics.
http://www.educypedia.be/electronics/electronicaopening.htm
There is oalso a page with computer related stuff.
http://www.educypedia.be/computer/computeropening.htm
and a science page.
http://www.educypedia.be/education/educationopening.htm

Greetings,
Bertus