Targeted writing instruction is introduced into a third year design course in a series of four required courses in engineering design at the University of Guelph. A variety of writing resources are gathered and adapted to the needs of students required to deliver a 40-page Design Report for a client-based project. The Writing Kit uses a multi-layered approach, including online and print resources and composing workshops explaining writing for analytic purposes, and makes rubrics available for self-evaluation by student writers. Instruction focuses on the relationship of written documentation to design work and the importance of outcomes for evaluating the success of the work as well as for producing it.