Ok, how are you "getting into" Hypnotism? Are you just curious or have you been watching all the YouTube garbage that will get you into trouble?
If you really want to learn Hypnotism and not just stage work GO TO SCHOOL. . . get board certified so you can have a legit claim to the title "Hypnotist" and too, you end up better protected (legally) than the fools that don't play by the rules. Understand, you really are playing with a person's mind and life, given how this is the typical logic used against doing Readings and how magicians would hate to be accused of double-standards, I'd think you'd want to take the high road, no?
Ormond McGill probably wrote more on both, clinical and stage Hypnosis than anyone past or present (over 100 books in total through the course of his life), much of his material sustained by Arnold Furst, another clinician/entertainer that did lots of lectures and writing of his own on the topic as well as the infancy years of NLP. I'll add, these are two men that knew and worked with Milton Erikson so some of his wisdom will be found in their material.
Ericksonian Hypnosis is potent as well as dangerous. I personally believe idiots not certified in this side of psychology need to be jailed because of how subtle and powerful this specific mode of hypnotism can be, especially when coupled with NLP related tactics (Richard Bandler's field).
Understanding these warnings I'll point you to two sources on stage hypnosis;
Reality is Plastic by Anthony Jocquine
The Encyclopedia of Stage Hypnosis by Ormond McGill
I'll also recommend taking some formal training such as Jerry Valley's Hypnosis Course. Jerry is one of the legends in that industry, headliner on the Queen Elizabeth cruise ship for roughly a decade or better. You may also wish to look at tapes featuring the "Hip Hypnotist" Pat Collins, one of the most unique, funny and gutsy Hyp Acts ever! She was a true goddess in how she worked and more importantly, her skills as a showman.
WARNING: You are likely to see a bunch of "experts" tell you that certification is bogus and not needed. Technically for stage performers this is true. But the other technicality, not just the legal and insurance side of things, involves income. As a licensed, board certified Hypnotist you can legally sell your own audio-video products, accept clients on the side for therapeutic treatment and more. In other words, you expand the opportunity to make money and have impact on the commercial market. You may want to think about this.