If you have trouble with drug calculations, these caricatures will be your friends. During my long stay in nursing school, I have seen many students struggle with the mathematics of drug calculations. As someone who had previously struggled with the numbers I have been quite successful in explaining this material to students who hate numbers. As I drew pictures, did examples, made analogies and anything else to explain the material, this book wrote itself. I believe that the same pictures, examples and analogies that worked for my fellow students will work for you. Throughout the book, I use cartoons to show the medicine as visible objects not just numbers. While teaching other nurses, I have found that the cartoons make the quantities and/or motion very easy to grasp.