Pixel Logic is an in-depth pixel art tutorial book currently at 242 pages!
This book focuses on VISUAL learning and limits text as much as possible, unlike other tutorials. Images > Text.

The tutorials will cover pixel art from start to finish, by studying video-game graphics from the past 30 years; with topics ranging from creating initial line art, to fully animating sprites. These tutorials will not focus on my own personal methods; instead they will combining examples from the past with modern application!

CHAPTERS:

Ch.0 - Introduction
Ch.1 - Line art
Ch.2 - Anti-aliasing
Ch.3 - Colours
Ch.4 - Readability
Ch.5 - Dithering
Ch.6 - Game perspectives
Ch.7 - Clean-up
Ch.8 - Subpixeling
Ch.9 - Animation

(From Goodreads)