This book is available on Amazon. I recently received it and haven't read it thoroughly yet.
The author supports free markets. He opposes socialism (government run health care, deficits, etc.) He feels that "capitalism" necessarily involves some government oversight (extreme Libertarians would disagree) and that once government becomes involved in the workings of capitalism, their interference grows and grows and that Fascism/Socialism is inevitable. I believe the author makes the claim that although one might want Capitalism to exist, it simply cannot -- government will always morph it into something bad.
Distributism is based on a papal encyclical, it was pushed by GK Chesterton and Hillair Belloc and was intended to be a moral economic system. John C. Médaille argues that anyone who really supports free markets should be a Distributist.
Note: I've tried to represent the author's views, based on the short time I have spent skimming the book. If I've gotten any of this wrong, I apologize.