It's a bit of a challenge keeping myself properly stocked, though.  I read rather quickly, a mixed legacy from grad school, so I finish a novel after a couple days of casual reading, less if I really like it.  In some countries, it's easy to find books - Chiang Mai, in Thailand, had some solid English bookstores, and the UK was obviously not a problem.  However, in China and Japan, it's a bit more of a challenge. When I visit the US, I routinely bring back ten to twenty books, and ration them out.