Preschooler’s social development is one millstone that considered of most importance for young children. Unfortunately, it is not getting full attention from the educational system in colleges and teacher preparation in Jordan. This book shed the light on the importance of teacher credentials and child-rearing beliefs in promoting preschoolers social development at early childhood settings. Teacher credentials and child-rearing beliefs in Jordan preschools tend to be low were more than half of preschool teachers (71, 43%) had low credentials and (77.14%) had traditional child-rearing beliefs. The author suggested several recommendations for policy makers and the Ministry of Education in Jordan. Some of these recommendations include but not limited to: hire teachers with BA in early childhood education, train more personnel to work as trainers for in-service teachers who do not hold a BA in early childhood education, develop training programs for in-service teachers and encourage them to join these training programs by giving them incentives and free training sessions and certifications for the in-service teachers who complete the training programs.