National Institute of General Medical Sciences
This booklet from the National Institutes of Health’s National Institute of General Medical Sciences makes cell biology come alive through vivid descriptions and stunning images. It is available in e-pub (http://publications.nigms.nih.gov/epubs/InsidetheCell.epub) and PDF (http://publications.nigms.nih.gov/insidethecell/insidethecell.pdf) formats.
Read this work at the World Public Library (library card needed).