I've followed Mark's blog and podcast for a while now and learned a lot. This book is a great accumulation of knowledge I've had to search for on various sites, all packed into one neat little package. Unlike some other books I've read, it definitely meets the miniskirt rule: Short enough to be interesting but long enough to cover the subject. Mark gives a thorough and fairly unbiased coverage of many topics and strategies, before giving his own input on what works in his special situation and area, always careful to remind the reader that what works for him may not work where the reader is. That said, I do find it interesting how biased he is against the 50% rule, 2% rule, and NOI. Like any other figure, they can be useful rules of thumb for quick analysis and comparison, as long as you know the pitfalls and how to use them correctly. Topics I hope he will revise in future editions. In addition, I did find quite a few errors, mostly spelling related. If not for these last 2 issues, I would give it 5 stars. Definitely a book I will keep in my kindle shelf for future reference!