I have different folders for different units. I also have binders that are labeled from A to Z that contain information sources. I keep more detailed information in my file cabinets. We use a lot of reference books, like nuisance animal control books, books about amphibians and reptiles, information on landscaping for wildlife and woodworking for wildlife, and a lot of other information. We also get DNR news releases on a weekly basis.
Reference books can be especially helpful for atypical questions.
On one occasion, a customer called to report unusual paw prints in his backyard. The Information Center was able to identify the paw print with a field guide, based on the customer's description of the length of the print, and how many pads, toes and type of claws it had. All rights reserved.