?Common Ground is accessible to teachers at all levels yet firmly rooted in current questions of second language acquisition (SLA). One of its primary strengths is the authors themselves, both of whom are accomplished language teachers who understand the challenges and opportunities in communication-focused language teaching. Their experience, expertise, insight, and enthusiasm for language teaching translate into a book that is refreshingly practical for teachers, especially teachers who are striving to break from traditional drills commonly presented in textbooks. I hope this book finds its way into the hands of every language teacher who is looking for concrete examples of how SLA principles meet the realities of the classroom." ?Stacey Margarita Johnson, Vanderbilt University