You can look to see if your school offers a bookstore voucher or other means for students to receive their books and supplies through the school or its bookstore.
so how does the grant work that I can't buy my books yet?
Usually the school first applies your grant money toward your tuition, fees, and room and board. Money left over is paid to you directly for other education expenses like the books you need.
can you give me any help with online materials I need for a class?