Recommended

BIORHYTHMS: A Step-by-Step Guide by Peter West (58 pages) is an excellent book for introducing someone to biorhythm(s). Only $7.95, it is available through your local bookseller or from Amazon.com or BanesandNoble.com

It gives a short history, explains the cycles, tells you how to interpret a chart and gives some samples of famous people and their critical days. It does NOT give you everything you would need to construct a chart for yourself (or for someone else), but it does give you easy to follow instructions after you find out where each of your cycles is at the beginning of a month.

BIORHYTHM: A Personal Science by Bernard Gittelson (431 pages) DOES give you enough information to make a chart. It is very, very thorough with lots of information for those who are ready for some serious studying. Over one million copies have been sold and it has long been considered the "bible" of biorhythm. The price is right: $5.99

The current edition (the ninth) is subtitled "1997-98-99 Edition," but it is still valid for all born before January 1, 2000. It is readily available through your local bookseller or over the Internet (see site links at the bottom of this page).