I also like redemption by Chris ballinger simple , clean and practical.
The book "Switch" by Jon Lovick is also a good read, there some very cool ideas, great resource.

I second the recommendation for the Switch book because you not only get several method's for the move itself, but you find some outstanding routines so you have a wealth of material to play with after you learn the move. You just have to decide if all that is worth the $50 you'd have to pay for it. You can learn the move for a lot less, but the material is terrific.

I heard that Lovick's book is terrific. I.ve been doing a bill switch for awhile. I really haven't used it much, but I want to brush up on the TT method to use as part of another routine that I'm working on.
Truly appreciate everyone for getting back to me. Thanks.