I used to have the Ormond McGill book, it's a real classic but it's a bit outdated.

I like this one:
https://www.amazon.com/Street-Hypnosis-Leading-Hypnotist-Techniques/dp/1537101110/

Another one:
https://www.lulu.com/shop/terry-stokes/stage-hypnosis-my-way/ebook/product-1wrmqg96.html?page=1&pageSize=4

https://www.amazon.com/Deeper-Secrets-Stage-Hypnosis-Jonathan/dp/B00JHZZTRI