Stanford University School of Medicine Childhood Obesity Prevention Study Researchers at Stanford University are actively recruiting for a study that evaluates parent education classes that are targeted at preventing childhood obesity by motivating parents to create healthy household behavior changes. This is a paid study -- participants are monetarily compensated for their participation and time. The study involves two parts. Part 1: Initial Assessment (1 Hour) Part 2: Parent Education Classes (5 classes total) * Classes take place in the evenings. Eligibility criteria: 1. Parent(s) must be overweight or obese. 2. Parent(s) must have a child between the ages of 2 and 4. 3. Parent(s) must be available for both parts of the study. For more information, please contact the study coordinator at (650) 723-2242. Thank you!