The book Photon Transfer: DN → λ is targeted to both novices and advanced users of the method. Providing guidelines to accurately generate, calibrate and understand imaging data products through the method, the resource presents background and theoretical material to show how the technique works, and it demonstrates the process of actually generating photon transfer curves. It contains more than 230 figures that present experimental CCD and CMOS data products and modeling simulations connected to photon transfer. The contents also provide hundreds of relations that support photon transfer theory, simulations and data. For the more important equations, example problems are presented to demonstrate how the relations are used. James R. Janesick; SPIE Press, Bellingham, Wash., 2007; $46, members; $56, nonmembers.