A Walk in the Woods by Bill Bryson
The book may be called A Walk in the Woods, but he sure doesn’t do as much walking as I’d expected him to do. There’s a lot of background information on the trail and some chapters on other things going on his life, preparation and so on. Few of the chapters involve his actual experiences on the trail and he walks much less of it than I’d assumed (I suppose I thought he’d done the whole thing). But an enjoyable read and the educational parts are interspersed with more entertaining parts so it doesn’t get tedious.