We currently have these 6 tutorials for Cocos2d-x and TexturePacker.
Tutorials for other frameworks are available from the tutorials list.
Tutorial: Using sprite sheet animations in cocos2d-x V3
Learn how to use sprite sheets and animations in cocos2d-x, design for different devices and screen sizes and optimize your game.
Cocos2d-x performance optimization with polygon sprites
Are you experiencing low FPS in your cocos2d-x game? Optimize your sprite sheets to get the best performance for the players!
cocos2d-x dynamic light tutorial
Tutorial: Create amazing 2d light effects for your Cocos2d-X game using normal mapped sprites.
TexturePacker Content Protection
How to use Content Protection feature in TexturePacker to protect your assets
These are more general tutorials with information about sprites, sprite sheets, performance and rendering quality: