I consider this book not worthwhile for its purpose. The first six chapters (200 pages) regurgitate what is readily available from the PSpice User's Guide. It is followed by equally insipid description of diode and transistor device modeling. There is no discussion of transient step size control in PWM simulations, which I find problematic. And there is no mention of loop stability analysis which has to be one of the most important aspects of the power electronics. In the final chapter where it could really give some useful tips on how to use Spice effectively and how to overcome convergence problems and other difficulties, I'm disappointed to find that very little is offered.