How to find book for self teach security?

General
- Find by publisher
Step by step: Packtpub https://www.packtpub.com/
Dive deep: No starch, O'Relly https://nostarch.com/

Keyword:
- certificate name + guide book keyword => dùng để thi chứng chỉ
- In action -> detail
- For dummies -> for beginer

How to find good source?
- Go to libgen web site, search by ISBN of book.