Do you remember your first field guide? Have you ever thought of developing your own for teaching or research? For students of all ages, field guides often are their first introduction to the natural world. They are also a critical part of rapid biodiversity inventories and citizen-science activities. In this workshop, authors and publishers of field guides to plants and ants, and the creator/project lead of Go Botany, an interactive online identification guide to the New England Flora, will discuss the design, production, and marketing of successful field guides. Workshop participants are encouraged to bring for discussion, critique, and development their nascent and evolving ideas for local, regional, and national field guides.