Second Life, L$ 200
Avalaible at SL Marketplace: Basic Scripting for Builders 3

"Basic Scripting for Builders" is the little brother of "Speaking LSL". Oriented to builders, it works at a very slow pace all the required concepts to understand scripts and know how to modify them.

This third book covers how to work with an On/Off template: a fully explained script that allows us to create just one script controlling several effects to activate/deactivate upon touch.

Slow paced, all the examples are fully commented.

NOTE: The HUD itself is no modify/no transfer