This book is intended for those who are familiar with first year calculus, written by an author with four decades of teaching experience. It presents some very unique problem situations not available in ordinary textbooks. Many are original contributions among which are the articles on the Weight Watcher Function, collection of rooftop solar energy, measuring very hot temperatures, highway speed surveillance, and determining the rotational speeds of galaxies. Other articles deal with material not easy to find which is made readily understandable for the reader. A few examples include the one on the rotating mercury reflector, a pursuit curve, cooling tea, and the curious fountain problem whose diagram is pictured on the cover.