I've been reading Don't Sweat the Small Stuff for Women which is one of the series of Don't Sweat the Small Stuff books written by Richard Carlson but this one is written by his wife Kristine. It's full of good advice with short chapters. It's probably nothing you haven't already read in other self-help books but it's good to be reminded not to take life too seriously!
Sadly, Richard Carlson died back in 2006. I'm not sure what he died of but he was too young (born in 1961).