I've read it by standing in a LFS for 20 minutes! I didn't buy it because it wasn't really nano-specific other than what small fish and corals work well. To be really sold, I'd need to see a compilation of unique designs or tools/devices unique to the nano and pico reefers. Pictures of unique and long term nano/pico designs, this book was very general in my opinion but it did have some nice pics. Actually, the very best system photo in the book couldn't hold a candle to some of our best, with all the unique drillings, refugiums, lights etc.
Just my opinion!
B