not necessarily important books just once I have read numerous times...
  1. Lord of the Rings trilogy, Tolkien. Yes I'm a nerd.
  2. Splinter of the Mind's Eye, Alan Dean Foster. One of the early non-movie books in the Star Wars universe. I loved that book.
  3. The New Testament and the People of God, N. T. Wright. To me the definitive statement of the new perspective on Paul, but more than that -- a whole new approach to placing the New Testament in its proper context.
  4. Business Communication, Bowman and Branshaw. Best book on basic writing skills I have ever used. Very influential.
  5. Pivot, Alan Zimmerman. Everything I want to be but am not.