From Milton Erickson:

My Voice Will Go With You: The Teaching Tales of Milton H Erickson
The Wisdom of Milton H Erickson

From Terrence Watts:

Crucial by Terrence Watts
Hypnosis Suggestion for Professionals Vol 1 by Terrence Watts
Hypnosis Suggestion for Professionals Vol 2 by Terrence Watts
Hypnosis Suggestion for Professionals Vol 3 by Terrence Watts
Hypnosis Suggestion for Professionals Vol 4 by Terrence Watts

From Steven Heller & Terry Lee Steele:

Monsters and Magical Sticks: There's No Such Thing As Hypnosis? by Steven Heller & Terry Lee Steele

From Mike Mandel:

https://www.youtube.com/user/DrMikeMandel - his hypnosis training channel