Hmm I don’t know really what to respond to this portion of reading except that it helped me understand viewfinders shutter speeds and focal planes a little more. It was nice to have F-stops and apertures and their relationship to depth of field further explained as well. the comparisons of DSLR’s and “point and shoots was laid out and easy to understand. i also appreciated the quick overview scanners printers and Photoshop controls. basically this portion of reading explained the basic of image making in its various forms to me.