At age 15, he wrote his first published book, 7 Deceptions, which reached international popularity within the magic community.

Best known for his use of suggestion and the apparent use of covert forms of psychological influence, his trademark routines are a self-induced cessation of his pulse, followed by a perceived stop of a random audience member's pulse, and The Chair Prediction, a routine in which Jermay predicts which chair a spectator will choose to sit in.

However, four of these have been published and widely circulated by magic companies: 7 Deceptions, Building Blocks, Coral Fang, and 3510.

Jermay also worked with Criss Angel on seasons 1 and 2 of Mind Freak (2005–2006), and with Marco Tempest on The Virtual Magician (2004).

In 2008, Jermay, Marcus Monroe, and Ben Seidman were founding members of The Optical Delusions, a touring show billed as "an evening of new-school variety.