This is a three page (six if you count the back sides) spread summarizing important information for an EMT to know. I used it initially to learn key points before taking my EMT class, but in general, reference guides like this are more useful when you are working on solving a problem. For example, I use them when studying Talmud and I need to check the definition of a word. In the EMS profession, you don't really stop to consult a reference like this while working with a patient. So I do not find the EMT quick study as useful as the quick studies for other topics.