on Front Edge Publishing:
Photos and images can add a great deal to a book’s content, as well as a reader’s comprehension and retention of the material. An image can convey a story in a powerful and memorable way. On a practical level, images can explain some concepts more concisely than a paragraph of text.
Here are some tips for selecting and preparing images and photographs to ensure they appear optimally in both print and web displays:
Chris The Story Reading Ape's Blog 