The Reading Metacognitive Strategy Picture Protocol (RMSPP) is an informal, authentic, naturalistic diagnostic tool for classroom teachers and clinicians to use with children as young as kindergarten to assess students' knowledge and awareness of metacognitive strategies. This article describes the RMSPP and how it was implemented in one informal project with 139 kindergarten -third graders, illustrating the usefulness of this picture protocol response technique with young children.This article describes an informal, authentic, naturalistic diagnostic tool for classroom teachers to use with children as young as kindergarten to assess students' knowledge and awareness of metacognitive strategies. The instrument -The Reading Metacognitive Strategy Picture Protocol (RMSPP) uses photographs of good readers in informal conversations about children's habits and behaviors before, during, and after reading, with an optional question which integrates children's representational drawings. The picture protocol response technique can also be implemented by special educators or clinicians as well as classroom teachers for instructional planning, having also been used successfully in individual clinical assessments. This article describes the RMSPP and how it was implemented in one informal project with 139 kindergarten -third graders, illustrating the usefulness of the RMSPP with young children.Experienced reading teachers today know from the well-established research base that efficient, strategic readers display awareness of comprehension strategies, and struggling readers often do not. Instruction in this important component has proven to be an important aspect of classroom curricula