This paper describes a series of in-service workshops on the teaching of writing, conducted for elementary and secondary teachers. After a brief overview of the way in which the workshops were planned, the paper examines the topics dealt with in the workshops: the composing process, varieties of writing, skills of writing, mechanics and conventions of writing, sentence combining, workshopping (interaction among students for the purpose of discussing and evaluating each other's writing), assessment and evaluation, the development of sample writing assignments, and developing writing competencies for kindergarten through the twelfth grade. The paper concludes with an examination of major learnings that emerged from the in-service workshops. A sample evaluation scale, a detailed description of the evaluation methods that were taught, and sample third-grade and seventh-grade writing assignments are included. (GW)