Sachar, Louis "Holes" - 1998
Sachar, Louis "Small Steps" - 2006
Sachar, Louis "Stanley Yelnats' Survival Guide to Camp Green Lake" - 2003
A wonderful trilogy that I can only recommend to all parents for their children. Especially for boys who otherwise might not read as much or don't like to read (which luckily I could never say about mine who both were avid readers).
Read more on my original posts here, here and here.