I highly recommend this book for those who are interested in infrared photography. It is a well-balanced combination of technical information on infrared radiation and how it varies, composition and visualization of infrared images, comparisons of the same scene shot with infrared and standard B&W film, use of IR film with different filters and types of subjects, and portfolios by seven photographers who cover a wide range of techniques and styles (including B&W IR, hand-colored B&W IR, and color IR). For most photographers, this is the only guide to Infrared you'll need.