One of the amazing statements in this book is that if teachers are asked if they test for higher-order thinking, the usually reply in the affirmative, but when asked to supply actual test questions, they usually are testing recall. For teacher librarians who help kids find information and then begin to use it, do we have any measuring sticks to know if kids are using the information they find to think? What measure do you use? When do you use them? After teaching kids to find authoritative information, do they go on to develop good arguments and draw sound conclusions? All too often, one suspects, students are guided to information but then sent back with some sources to the classroom and what happens to that information is never apparent to the teacher librarian. Brookhart’s book should be required reading by every teacher librarian who wants to move toward the center of teaching and learning. And, upon a careful study, the book needs to be shared with a collaborating classroom teacher as a guide to build sound formative and summative assessment strategies. After a brief introduction to what higher-order thinking is, Brookhart teaches us how to assess the following dispositions: assessment of analysis, evaluation, and creation; assessment of logic and reasoning; assessment of judgment; assessment of problem solving; and, assessment of creativity and creative thinking. Any teacher librarian who understands these strategies will approach the teaching of 21st century skills quite differently than if they persist in just front-loaded inquiry of asking questions, finding information, and taking notes. Perhaps we should make a large poster to hang above our table where classroom teachers and we are planning. We can, as we discuss assessment, look up and ask which of the many skills could we assess that make sense in the unit we are planning. And, if we did not have a clue, then delve into a nearby copy of Brookhart for some ideas. This is a very very important book and topic; not one to purchase and then have it sit on a shelf.