Hi, I'm looking for some advice on what book to use to learn about waves thoroughly. I have been self studying for quite a while now and I'm also taking classes at a community college. Those classes use Young and Freeman's University Physics. I decided to selfstudy because I found the content from that book to be somewhat unchallenging. I have completed working through An intro to mechanics by kleppner, as well as Spacetime physics and I'm a couple of pages away of finishing Purcell's book. I'm looking for advice on what to do next. Simply whats a book about waves at the level of the books I just mentioned? How much do I need to know about waves before I begin moving into stat mech/quantum? I have French's book, will that be good enough? I ask this because I believe MIT uses French's plus another book about waves for their 8.03 class. Any input will be appreciated.