Textbooks are from CoOp and course manuals are from the Copy Centre ... you can search your subject textbooks through the coop bookshop website and the copy centre website has a list of all the units with manuals and workbooks available. MUSC has its own set of manuals, workbooks etc that are sometimes only available at The Con.
EDIT: ENGL1008/1009 have textbooks/novels/core texts available at The Co-Op... best to check up for ARTH1001 and MUSC1507.