I bought this to go along with his free video courses from the Open Yale Courses.  He has presented  Physics 200 and 201.  The book has instructions to get to those courses. The videos are classroom sessions that follow the book, mostly.  The material that comes with the videos include problems sets (and solutions), exams (and solutions) along with extra material.  Having the book adds to the richness of the some fifty videos for both Physics 200 and 201.  It has been long time since physics classes, so this book and the accompanying videos, are a way to get back into the subject, the math and the new concepts.  Not that I have been that successful, but the book does help.  I think that it is not that I have forgotten that much (OK, maybe a little), but that there is so much more physics now.