These are some of the books that I have found either useful or inspiring or the best is both.
Introduction to NLP :
Joseph O’Connor and John Seymour
NLP: The new Technology of Achievement :
Steve Andreas and Charles Faulkner.
Conversations, Freedom is everything, love is all the rest :
Owen Fitzpatrick and Richard Bandler.
Unlimited Power:
Anthony Robbins.
Get the life you want :
Paul Mckenna and Richard Bandler.
Shibumi:
Trevanian.
Dune:
Frank Herbert.
Stranger in a strange land :
Robert A Heinlein.
Time enough for love :
Robert A Heinlein.
Jonathon L Seagull :
Richard Bach.
Incarnations of Immortality:
Piers Anthony.
Troubleshooter:
Sir John Harvey Jones.