A Parent's Guide to Eating Disorders and Obesity, by M. M. Jablow. New York: Delta Books, 1992, 164 pages, $10.00 paperback. Group Therapy for Eating Disorders, edited by Heather Harper-Giuffre & K. Roy MacKenzie, Washington, DC: American Psychiatric Press, 1992, 353 pages, $43.00. Preventing Childhood Eating Problems: A Practical, Positive Approach to Raising Children Free of Food and Weight Conflicts, by Jane R. Hirschmann & Lela Zaphiropoulos. Carlsbad, CA: Gurze Books, 1993, 160 pages, $9.95.