This book is designed for students who need additional preparation for math classes at North Park University numbered 1510 Calculus-I and 1520 Calculus-II or higher. The book covers all the topics that are required for this course: topics in properties and graphs of functions such as polynomial functions, rational functions, exponential functions, logarithmic functions, trigonometric functions, and inverse trigonometric functions; solving equations and inequalities; trigonometric identities and applications of trigonometric functions; complex numbers; and conic sections.