As part of a big student-related Kindle e-books sale for Sunday, Amazon has one photography Kindle e-book participating in the sale, it is by Alan L. Detrick offered for $2.50. It is 176 pages long with 24 customer reviews and an average of 4.7 out of 5. Click on "Look Inside" at the aforelinked Amazon page to get a better feel of the book. This is an e-book, not a printed book! The promotion ends at 3am ET on Monday 8/12/13.
Source:
http://cameradeals.1001noisycameras.com/2013/08/macro-photography-for-gardeners-and-nature-lovers-for-250-kindle-e-book.html