Second Life, L$ 250
Avalaible at SL Marketplace: Basic Scripting for Builders 2

"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 second book covers how to create scripts that react to touches, how to put two actions on touch, and how to put together several scripts on touch, so you have the same actions in just one.

Slow paced, all the examples are fully commented.

NOTE: The HUD itself is no modify/no transfer