This illustrated exploration of the life sciences covers many topical issues, ranging from the origin of life to mad-cow disease. The illustrations include line drawings, mostly in colour, and many electron micrographs. Concisely written, it should be suitable for the non-specialist, as well as the undergraduate embarking on this field. The text also provides basic information on the major groups of disease-producing microorganisms, their defence by the body, and preventive measures such as immunization. It shows how closely integrated plants and animals are to one another in maintaining life on the planet. The ultimate message of the volume is the need to protect our ecosystem and the need for scientists to rise above the confines of race and nationality for the good of humanity.