Wow, what a question! I can't give you a definitive list of five favorite books (too hard to narrow down the list), let alone five that shaped my life (really? shaped my life?). An impossible challenge!
Barth, John. The Sot-Weed Factor. I could never read this one today, it is more than 700 pages long, but I loved it way back when.
Garcia Marquez, Gabriel. One Hundred Years of Solitude. [F GAR] I'm not much of a magical realism fan, but this book won me over.
Hurston, Zora Neale. Their Eyes Were Watching God. [F HUR] I found this one compelling!
Kluger, Steve. Last Days of Summer. [F KLU] A simple, feel-good book that I recommend to everyone!
Lee, Harper. To Kill a Mockingbird. [F LEE] This title is probably on everyone's list--and for good reason!
Norman, Howard A. What is Left the Daughter. [F NOR] This is a recently published title that I loved. I can't exactly pinpoint why, other than the excellence of the writing.
Robinson, Marilynne. Housekeeping. [F ROB] Robinson's writing is superb.