This primer is intended as a guide for the development and improvement of summer youth programs. The primer focuses on three common forms of summer academic enrichment strategies that combine work and learning: work-based learning strategies, classroom-based enrichment strategies, and summer jobs strategies. It includes information on the following: the key principles involved, the roles of the public schools, the community-based organizations, and employers, key principles guiding partnership development, and other standard components of summer academic enrichment. The guide also includes a short overview of 13 demonstration summer program sites, called Summer Beginnings. (KC)