Full review at http://bookwi.se/tithing-by-douglas-leblanc-the-ancient-practice-series/
Short review: It was ok. This was a journalistic/interview take on tithing. Didn't answer many of my questions about what tithing should be about. Didn't have any history of tithing in the Christian church.
I want to like the Ancient Practice series, but I have been disappointed in most of them. They have not been that grounded in scripture or history. Fasting by Scot McKnight has been the best so far.