Are you looking for "Hypnosis" or more "Hypnosis Magic" Stage? Parlour? something more "Impromptu"?
this is going to differ, and you are going to get different views from different people, some will say you can learn from a book/DVD, and others will say you need to be formally trained in-person
Just like you will get Hypnotists that disregard "Hypnosis Magic" and insist you learn "real hypnosis", hypnotherapy, etc
so, it depends...
If you want something aimed more at Magicians
Anthony Jacquin - Reality is plastic - http://www.anthonyjacquin.com/shop/e-products/reality-is-plastic
Anthony Jacquin - The Manchurian Approach (DVD's) - https://www.vanishingincmagic.com/stage-and-parlor-magic/the-manchurian-approach/
Looking for actual hypnosis. Not magic tricks that use hypnosis as a "cover" or story.
The real deal
I already know what it is having had it done to me before, .ooking for tecniques on inducing the state and all the descriptives of how the mind responds to it.
Personally I would recommend The Trilby Connection over the Manchurian Approach - it's basically Jacquin taking a new student through Reality is Plastic, and then you also see him and his team critiquing some hypnosis performances.
Not sure if the physical copy is sold any more. Head Hackers was dissolved some time ago, so he may not be printing it. PDF version is available on Jacquin's site, though.
Does Derren Brown never genuinely use hypnotism?Darren Brown NLP pseudo-hypnosis "tricks"
Does Derren Brown never genuinely use hypnotism?