Hello everybody. I am looking for a good graduate text in quantum mechanics. I studied from Griffiths during my undergraduate career and I loathed it. I thought it was sloppy and poorly arranged. Currently I have the one by Gottfried and Yan, "Quantum Mechanics: Fundamentals." I like it. It seems to be a formal treatment of the subject requiring a lot of engagement on the reader's part. However, sometimes it is too terse, in my opinion. I also know that some people love Landau's text. Here is my question: is Landau's a graduate text or an undergraduate text? Or does any of you have any other suggestion? (I know some people use Sakurai) Thanks.