Which services are typically provided by a book jobber?

A book jobber functions as a middleman between publishers and educational institutions or libraries, offering various services to facilitate the acquisition of books and other materials. The correct answer, which highlights both processing materials and providing bar codes, accurately reflects the core responsibilities of a book jobber.

Processing materials involves tasks such as arranging shipments, invoicing, and managing inventory, which are essential for ensuring that the books ordered arrive in a timely manner and are accounted for properly. Additionally, providing bar codes is a crucial service, as barcoding helps libraries and schools manage their collections efficiently, allowing for easier tracking and circulation of books.

The other choices suggest services that, while valuable, do not encompass the typical roles of a book jobber. Suggested lesson plans and MARC records are more specialized services often provided by educational resource providers or library services, rather than by book jobbers whose primary focus is on the procurement and logistical management of book orders. Hence, the correct option emphasizes essential operational support that book jobbers offer to educational institutions.