Bob Cassidy's has left an indelible mark on the world of mentalism, and I truly believe that out of all his amazing contributions, his metamorphosis of Annemann's original Fourth Dimensional Telepathy is a legacy that has and will continue to stand the test of time.

I've called this book A Nod to Bob, The Fourth Dimension Revisited - again, because I've already devised, performed, and discarded dozens of versions of this style of routine since I first read Bob Cassidy's take on Annemann's original fourth-dimensional telepathy decades ago.

I performed it exactly as Bob described it for years before I started to devise my own methods many of which I've published in different books or shared during lectures.

All of the 4DT innovations I've released so far, evolved over a twenty-five-year period, but over the past few years, I've come almost full circle and have found myself back to billets and envelopes.

Using just three-coin envelopes, three business cards and a pen, and with no switches, steals, impression devices or electronics, this in my opinion, is probably the simplest, cleanest, and most versatile method I've used to date.

Welcome to A Nod to Bob.

"Bob Cassidy's work with Anneman's Fourth Dimensional Telepathy is legendary. Seeing him perform 4DT live is a masters-level lesson in how to present mentalism. As great as his performance was, there were certain things about the mechanics of his handling I didn't care for. With A Nod to Bob, Scott has ingeniously eliminated all of these, with what may be the most streamlined, efficient handling yet. Three envelopes, three business cards and a couple of pens. Utterly Brilliant. "

- Bill O'Connell.

"I purchased "A Nod to Bob" last night and it's absolutely brilliant. No faffing around with flapless envelopes. As is typical of Scott's work, it's simple, straightforward, does exactly what needs to be done and leaves plenty of scope for performers to stamp their own personality. Love it x 1000%. "

- David Numen

"I've experimented with Bob Cassidy's routine many times over the years but was never 100% happy with it. I saw Bob perform it at least a dozen times, and also had a wonderful afternoon with him in Seattle discussing it. Scott's version of it is smoother and he's explained every detail thoroughly and clearly."

- Richard Webster

"Bought it, read it, love it, performed it once and I confirm that, as far as I'm concerned, it's a massive improvement on the original."

- Luke Koan

"Bought it, read it, love it!"

- Jan Forster

"This made my day!"

- Daniel Cullen