Hello,
@dragon , You could have a look here to learn the basics of electronics:
www.allaboutcircuits.com
Also the following books might help.
For absolute beginners this might be reasonable:
For more understanding of components have a look at this book:
Bertus
@dragon , You could have a look here to learn the basics of electronics:

Textbook for Electrical Engineering & Electronics
These free electrical engineering textbooks provides a series of volumes covering electricity and electronics
Also the following books might help.
For absolute beginners this might be reasonable:
Electronics For Dummies : Dickon Ross, Cathleen Shamieh, Gordon McComb : Free Download, Borrow, and Streaming : Internet Archive
What it says on the tin...
archive.org
For more understanding of components have a look at this book:
Illustrated Dictionary Of Electronics Stan Gibilisco : Stan Gibilisco : Free Download, Borrow, and Streaming : Internet Archive
Illustrated Dictionary Of Electronics - 8th EditionbyStan Gibilisco
archive.org
Bertus