I just wanted to pipe in and agree with what everyone else is saying here. Even though I'm an absolute novice in the art of legerdemain, the five volume set from Giobbi was the very first thing I purchased after reading numerous (very positive) reviews on many different forums.
I'm not even through volume one yet, and I already scare myself! This is a fantastic learning tool for beginners, as well as a wonderful reference for those more advanced. I'm sure I'll be refering back to these books for years to come.
Thanks for the "heads-up" on volume six. I'll definately be adding it to my library as soon as it becomes available!