[yummypaint]

I dont usually recommend textbooks, but Griffiths QED may be of interest if you haven'thheard of it. PDFs abound.

[Rerarom]

You mean the elementary particles book?

[yummypaint]

Sorry that was clear as mud. This is what i was remembering: isbn 978-0131118928. In grad school i frequently used Griffiths as a solid jumping off point for more challenging resources.

[Rerarom]

Thanks! So the QM book.