Students are encouraged to suggest titles as well. Criteria for purchase include relevance to curriculum, demand, need, availability, price, reputation of author and publisher, and quality of illustration. Starting in 1982, most university press books come on blanket order, but major trade publishers need to be watched for landscape materials. The periodical collection is reviewed annually for additions and cancellations. Journals regularly routed to librarian include Landscape Journal .
Horticulture is collected by the agriculture bibliographer.