I usually avoid hand-to-hand combat with Howard, because he is a much better flow cytometrist than I am and he would always win. I agree that his book is MUCH more up-to-date than my book or Mike Ormerod's book. It is also MUCH more complete, because I, at least, have intentionally left out many of the more sophisticated issues. HOWEVER, as said by Emily Babendreier, the up-to-date-ness and complete-ness of Howard's book may make it somewhat "too intense, " that is, less appropriate for real beginners who want initially just to learn the basic principles of how a basic cytometer works (and may not yet or ever need to know about side populations, quantum dots and violet diodes). Also, the Shapiro book is considerably more expensive for a beginner (although undoubtedly excellent value per bit of information). My recommendation to real beginners is to start with one of the shorter basic books or with a chapter in one of the multi-author volumes. Then, definitely move on to Shapiro when ready. Alice Alice L. Givan