STEVE SLAVIN, Ph.D., is the author of many Wiley self-teaching guides, including Precalculus: A Self-Teaching Guide, Quick Business Math: A Self-Teaching Guide and the recently revised All the Math You’ll Ever Need: A Self-Teaching Guide.
GINNY CRISONINO has taught math at Union County College in New Jersey for sixteen years. She is the coauthor with Slavin on Precalculus: A Self-Teaching Guide.