I recently read the book "The Poker Tournament Formula" by Arnold Snyder. This book covers the differences between the various structures you have to choose from. It also explains the strategy adjustments you need to make to survive to the final table in the faster (turbo) structures.
I really found it helpful and its less expensive than most poker books on the market. The author is best known for his books on BJ. Mason even mentions that in a post over on 2p2.
His ideas on position have really been a help to me. I played a stars 10FPP freeroll in the dark (didn't pay attention to my cards at all) using just his ideas on position and finished around 400 out of 3800 for a small ITM profit.
Very interesting book IMO.