If you want to be the next great DJ, there is so much that you must know; from how to use the equipment the proper way and safely, to which equipment to carry to what gigs, to how to know what music to play from all the music in the world, which could ultimately be the toughest thing. One of the ways to get you started is by reading a book. Here are some recommendations by DJ Jimmy Entourage.
First is Rock The Dance-floor by Phil Morse. It contains a proven 5-step formula for total Doing success. Phil delivers DJ education in a comprehensible way. You would be happy to know that he is thorough and quite the pro DJ himself.
Once done with that, you must read The Hacienda, How not to run a club, by Peter Hook. He prides himself on 30 years of experience in the music industry.
You could never go wrong with both of these.