Several: * "The Elements Of Computing Systems", by Nisan and Schocken Accompanies www.nand2tetris.org and leads you through implementing logic gates, a CPU, Assembler, right up to a functional computer, with the help of simulator software on a PC. Fascinating, but requires 100-200 hours to complete all the exercises. * "The Rosie Project", by Graeme Simsion Easy to read novel about a man searching for a wife, as recommended on Bill Gates' blog * "Island Of The Lost", by Joan Druett A true story of survival after being shipwrecked on a remote island * "River Town", by Peter Hessler The experiences of an English teacher who spent two years working in China
Also recommended in this reply