The most oft repeated are listed in the top 20. 

1 -A Walk in the Woods by Bill Bryson Get it From:	2 - The Kite Runner  by Khaled Hosseini Get it From:	3 - Pillars of Hercules  by Paul Theroux Get it From:	4 - Accidental Tourist by Anne Tyler Get it From:	5 - The Time Traveler's Wife -Audrey Niffenegger Get it From:
6 - Paddling the Pacific  by Paul Theroux Get it From:	7 - The Old Man and the Sea - E. Hemingway Get it From:	8 - Into the Wild by Jon Krakauer Get it From:	9 - The Red Tent by Anita Diamant Get it From:	10 - Roughing It  by Mark Twain Get it From:
11 - Innocents Abroad  by Mark Twain Get it From:	12 -Into Thin Air by Jon Krakauer Get it From:	13 - On the Road  by Jack Kerouac Get it From:	14- Notes From a Small Island  by Bill Bryson  Get it From:	15 - In a Sunburned Country  by Bill Bryson Get it From:
16 - Iberia  by James Mitchener Get it From:	17- West with the Night by Beryl Markham  Get it From:	18- A Room With a View  by E.M. Forster  Get it From:	19- Kite Strings by Laurie Gough Get it From:	20 - The Songlines  by Bruce Chatwin Get it From: