An Adventure in Tetris World

An Adventure in Tetris World  is a strategy guide for Tetris. It was published inside Nintendo Power magazine's volume 10 in 1990.

About the strategy guide
The guide was a 16-page "tip book" that gave strategies and tips on how to win in Tetris. The characters Howard and Nester appear in the book as Tetris shapes. They give the tips throughout the book using illustrations as examples.

It is said within the guide that if a player wants to be a Tetris Master, that player has to become "Tetrisized".