A bit about the process: Each image went through maniputation in Adobe Photoshop. The images from the video probe miscroscope were originally in color, but I decided to make them greyscale to better fit with the black and white images from a Scanning Electron Microscope (SEM). The page and cover backgrounds are close-ups of a pigeon feather captured with an SEM. See below for details on each creature image.
Just So Stories: Microorganisms is meant to be a small 16 page book, printed on one two-sided sheet of glossy cardstock (and then cut appart and bound with staples). Here's what the pages look like when arranged for printing: