Start with high-confidence android os books, then narrow by subgenre or adjacent topics.
Android Programming
Bill Phillips, Chris Stewart
Android App Development for Dummies
Michael Burton
Android Application Development All-in-one for Dummies
Barry Burd, John Paul Mueller
Android Smartphones for Seniors for Dummies
Marsha Collier
Android Cookbook
Ian Darwin
Head First Android Development
Dawn Griffiths, David Griffiths
Learn Java the Easy Way
Bryson Payne
Hello, Android
Ed Burnette
The Android Malware Handbook
Qian Han, Salvador Mandujano
