as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
what kind of sites can be used to buy a textbook?
user
online textbook retailers such as abebooks, amazon, barnes & noble, chegg, and valorebooks can be used to buy textbooks.
assistant