In Writing Expertise, Linda Adler-Kassner and Elizabeth Wardle address the question, "How can instructors across disciplines best help students write well?" Drawing on research about how disciplines use writing to engage in shared ways of thinking, practicing, and demonstrating knowledge, the authors offer an approach that helps faculty across the disciplines invite students to bring new ideas and identities to their work. Throughout the book, Adler-Kassner and Wardle help instructors explore what it means to write well in their courses, fields, or disciplines and offer strategies and activities that can help them improve their assignments by infusing research-based writing activities into their courses. Writing Expertise provides an innovative, equity- and research-based approach to writing in the disciplines that will enrich instructor and student thinking. Thoughtful discussions and well-designed activities provide the support needed to help instructors put disciplinary thinking into written form, develop systematic aways of learning about the students who write in their courses, and ultimately develop more effective, inclusive courses.