This book has a somewhat historic value to me, since it not only goes
over the workings of sleights and effects, but also covers the history
and various handlings. Richard Kaufman also has a small essay
on what has become generally known as the Convincing Control,
discussing the move's history and independent creators. Jennings'
handling of the move is explained it great detail, as well.
One chapter is called Evolution of a Classic Routine: "Invisible Palm Aces".
The chapter discusses several versions of Jennings' classic Open
Travelers plot, and you get to see how it evolved over time.
Similar chapters are dedicated to The Princess Card Trick, The Ace Assembly and Twisting the Aces.
Jennings
was always looking for a clear and streamlined effect, and you will see
how he strives for that goal throughout this book.
Not only was Larry Jennings a great thinker; he was also an
extraordinary technician. The chapter "Some Tools" has some really
wonderful sleights, that I got much joy from. The Circle Shift and The Bevel Top Palm are among my highlights from this chapter.
There is also some more or less self-working magic in the book, and
you will most certainly find several things of use β I know I did.