We have given this 40 question summer assignment for many years to students who have completed our Pre-Calculus/Mathematical Analysis courses and have enrolled in Calculus for the following year. The idea is for students to review concepts taught from previous courses that will be necessary for their success in Calculus. All of the problems have been chosen with the hindsight of many years of Calculus instruction. Problems include writing equations of lines, evaluating trigonometric expressions, simplifying trigonometric identities, working with exponential and logarithmic functions, transformations of the plane, area, volume, and slopes as rates. Several problems require students show knowledge of using a graphing utility, while others require specific content knowledge by having the students give exact answers.