When pushed I do have a list of about thirty that I think are required reading for anyone who has an interest in the self development field. I work in the areas of NLP, Persuasion, Attitude, Fire and Glass walking, Inner Game, Seduction and Hypnosis.
Here is a small selection.
I guarantee that, when I go on holiday or if I am travelling....at least three of these books are in my bag.
As far as price goes, you may find some of them, due to age, a little on the high side. Remember, if a £40 book changes your life or one sentence in a book makes you £20,000...you won't worry about the price.
I have read all of Richard Bandlers books. These are my favourites. He, along with John Grinder,created NLP. He is the Master
Steven Heller was a great inspiration to me and I consider Monsters and Magical Sticks to be one of the best books on Hypnosis ever written. I can read it again and again and still read something I didn't get last time!
Neil Strauss brought Seduction and persuasion into a wider consciousness with his books The Game and the Rules of The Game. Ross Jeffries, Bandler, Steve Piccus, Hypnotica and a lot of others appear within the pages. Its a good resource to find your own way and navigate the minefield.
Two great books on Firewalking
For help in breaking out of limiting beliefs and mind sets then I would suggest reading:
A Terrific book that combines persuasion techniques, language patterns and hypnotic language with sales techniques. Unlimited Selling Power
Plus these classics, which are required reading, in my opinion....
Robert Cialdini - INFLUENCE
Shinzen Young - SCIENCE OF ENLIGHTENMENT
Robert Greene - 48 LAWS OF POWER
Robert Greene - The Art of Seduction
Robert Greene - THE 50th LAW
Serge King - MASTERING YOUR HIDDEN SELF
Christopher Hyatt - UNDOING YOURSELF/ENERGIZED MEDITATION
Christopher Hyatt - THE PSYCHOPATHS BIBLE
Robert Anton Wilson - PROMETHEUS RISING
Robert Shea - THE ILLUMINATUS TRILOGY
Philip Farber - FUTURE RITUAL
Philip Farber - META MAGICK
Allen Sargent - THE OTHER MINDS EYE
This list is VERY incomplete....