God's Playground by norman davies is pretty much the standard for western readers.
davies' has made a career out of writing about poland
other books i would suggest include The Polish Way by Adam Zamoyski
which is a nice single volume, an easy read and accesible and
bitter glory by Richard M. Watt
which is an excellent acountof poland in the interwar years (1919-39)
Bitter Glory especially dos a good job of presenting several angles on the history.
Getting back to 'bad history', the industry leader in bad history on television, the History Channel, was at it again. Last night they had an episode of Battlefield Detectives on - the battle of Britan. I just couldn't look at it seriously! Here's why:
1) to illustrate the map of germany taking over europe, they colored in countries as the germans overran them. Only they used a map OF MODERN DAY EUROPE! *slams head into wall*.