This guide to the PSpice circuit simulator provides a tutorial approach to using PSpice through graduated examples. This edition includes enhanced pedagogical features, and coverage of the newest capabilities of this program. It explains: the use of Monte Carlo methods in PSpice for statistically computing estimates of how circuits will behave with variations in component values and derivation and use of two-port parameters, including s-parameters. It also includes an expanded section on group and time delay, and on noise analysis, as well as fuller descriptions and examples for using parameters, functions and values defined by formulas to generalize circuit blocks and specify component values.