Bit of a hard one-- I want to learn about the Oxus civilization, but I'm struggling to find a comprehensive introductory source, or a group of sources covering particular topics which I can work off from there. Would anybody be able to provide some pointers?
The forthcoming The World of the Oxus Civilization is intended to be a comprehensive overview of the BMAC. Unfortunately, it is going to be prohibitively expensive, so you'll probably have to acquire a copy from a university library.
There are very few affordable resources in English. I recommend starting with Treasures from the Oxus: The Art and Civilization of Central Asia by Massimo Vidale. For information on Gonur Tepe - by far the best known BMAC site - see MargusĖ§: Mystery and Truth of the Great Culture and Necropolis of Gonur by Victor Sarianidi.
Be sure to check out the relevant chapters in Art of the First Cities: The Third Millennium B.C. from the Mediterranean to the Indus (available as a free PDF).