I love looking at LEGO architecture, so this book looks like it may be a must have; there's something exciting about spotting the different techniques used to represent real-world (or soon to be) buildings and landscapes, seeing how the builder has worked within the limitations of the LEGO system.
Brickset has further pictures and discussion about the book, and from the pages that have been shown I think it looks to be very informative. If you've not seen any of the other No Starch Press LEGO books, I'd recommend keeping an eye out for Humble Book Bundles as they have had at least two bundles in the past, covering LEGO, programming, and science.
So, Hubski, have you ever built any LEGO architecture? Was it a MOC or one of the modular buildings? If the former, what inspired you? If the latter, have you tried improving the model?