Book excerpt: Showcasing assessment practices that can help teachers plan effective instruction, this book addresses the real-world complexities of teaching literacy in grades K-8. Leading contributors present trustworthy approaches that examine learning processes as well as learning products, that yield information on how the learning environment can be improved, and that are conducted in the context of authentic reading and writing activities. The volume provides workable, nuts-and-bolts ideas for incorporating assessment into instruction in all major literacy domains and with diverse learners, including students in high-poverty schools and those with special learning needs. It is illustrated throughout with helpful concrete examples.