I first encountered this book more than a decade ago, when I used it as a supplement for self-study in first-year calculus (basically in the manner of a Schaum's Outlines -- just another portable resource with problems and answers). I was happy to find it again! In terms of coverage, it is reminiscent of business-oriented calculus books (for instance, it is very strong on optimization and differentiation techniques but is somewhat light on integration and has little coverage of trigonometric functions), but its level of rigor is easily on par with "standard" undergraduate calculus texts (e.g. Stewart). Since I was especially interested in business/economic applications, which are less abundant in the standard texts, Silverman was perfect.As I discovered later, there are several excellent books in elementary mathematical economics (Chiang/Wainwright and Sydsaeter/Hammond come to mind), but these were expensive then and are now in the neighborhood of $200, and Silverman is still a great read at a great price. Dover is a treasure trove of math classics, but most are fairly advanced books of little use to college math minors like myself. Silverman is an exception: more rigorous than business calculus books, but with fantastic applied problems in finance and basic economics, and good all-around explanations of core calculus ideas (it even includes a brief but pretty good discussion of the epsilon-delta technique in limit problems, something absent even from most math-for-economists books, let alone business calculus textbooks). Bravo to Dover; I hope this one stays in print for years to come!