PEERS® for Preschoolers is an evidence-based social skills program designed for children ages 4 to 6 who struggle with making and keeping friends. Developed at UCLA, this program provides a fun and supportive environment where children learn essential social and play skills. To participate, children should be able to use basic words to express themselves, follow simple directions, sit for short periods, and manage mild frustration. They should also show some interest in playing with others. Parent involvement is a key part of the program. While children learn social skills in their own small group sessions, parents attend concurrent coaching sessions. These sessions teach parents how to reinforce social skills at home and in everyday situations, helping children practice and apply what they learn. The program runs for 12 weeks in small group sessions, using role-playing, social coaching, play-based learning, and behavioral modeling. Families also receive homework assignments to support continued practice outside of class. Children develop skills such as starting conversations, taking turns, sharing, playing cooperatively, managing emotions, reading social cues, and responding to teasing or exclusion. By combining structured lessons, play, and active parent participation, PEERS® for Preschoolers helps children build confidence in social interactions and form meaningful friendships.