These books are the best!
They are, basically, the life's work of Dai Vernon and encapsulates
his work the best.
This volume is mainly lots of small tips on technique that make dramatic
differences. They are worth their weight in gold!
The last half of the book is some old Vernon
tricks revisited as well as a bunch of new ones.
All in all, you should get these books.
They will make you a better magician.