Warren W. Wiersbe does such a wonderful job of overviewing many books about outstanding christian men and women. Each book review is inspirational and complete in and of itself, but compels the reader to find the orignial book and read further. I pick it up often and read again and again for inspiration and encouragement.
Brief overviews of the lives of 20 great Christians. Doesn't gloss over the fact they were human, makes it even more encouraging.