What books are so good that I would recommend reading them twice?  I very rarely read a book twice.  Given that I don't want to recommend for others what I wouldn't do myself... I delayed in answering this question.  

As I reflect on my reading habits, I discovered that the things that I read again and again are poems.  There are very few poems that have really captured me, but those that do, they stay with me forever.

Poetry:

Short, but they capture an idea in such a profound way (or remind me of a specific person) that I go back and reread them often.

• If, Rudyard Kipling
• Osymandias, Percy Blythe Shelley
• What is this Life?, WH Davies reminds me of Brian Leggett
• If you think you are beaten, Walter Wintle
• The Road not Taken, Robert Frost
• On Marriage and On Children, Khalil Gibran
• The Bridge Builder, Will Allen Droomgoole reminds me of Warren Rustand
• Do it Anyway, Mother Teresa/Kent Keith

Non-fiction:

The only books that I can honestly say that I have gone back and re-read sections:

• The 7 Habits of Highly Successful People, Stephen Covey
• The Rockerfeller Habits, Verne Harnish
• The 22 Immutable Laws of Branding, Al Rie

Fiction:

I have only ever re-read 2 books...

• Dune (there are 8 novels that are part of the full saga)
• East of Eden

I'd love to hear other's inputs on this... what are the books that are worth re-reading?