Here are a few that I enjoyed (in addition to those already mentioned):
The Bird, by Doug Wilson. Not particularly well written but I enjoyed the trip down memory lane;
Just Tell Me I Can't, by Larry Platt, an inspirational story of Jamie Moyer's perseverance;
Bottom of the 33rd by Dan Barry, about the longest game in professional baseball history, very rich and enjoyable story; and
Cobb, by All Stump. Probably my favorite baseball biography. Cobb was a fascinating in flawed individual, but way ahead of his time in many respects.