This document discusses four main parenting styles - permissive, authoritative, neglectful, and authoritarian - as identified by developmental psychologist Diana Baumrind and expanded on by researchers Eleanor Maccoby and Jacob Martin. It provides statistics on the prevalence of each parenting style in the US and examines the effects of each style. The authoritative parenting style, which is high in both demandingness and responsiveness, tends to have the most positive outcomes for children's development, while neglectful parenting tends to result in the most negative outcomes. The document also explores additional parenting styles like attachment parenting, helicopter parenting, tiger parenting, and free-range parenting.