Joining others in the 'Master Math' series is this fine introduction on calculus, covering the basics of sets, functions and integrals. Basic formulas, principals, discussions of sequences and progressions, and step-by-step directions link formulas to everyday life and provide calculus students with an excellent foundation for progressing to the next step. The result is a 'must' for any high school or college collection where calculus is an introductory course, and for any student taking it.
