The Ecopoetry of Cascadia will be presented by poets Derek Sheffield and Jill McCabe Johnson on Saturday, April 20, 5 p.m. at the Orcas Island Public Library.

Cascadia Field Guide brings together art, poetry, and stories holding scientific, sensory, and cultural knowledge to celebrate and illuminate Cascadia, the bioregion stretching from Alaska’s Prince William Sound to Northern California and from the Pacific Coast to the Continental Divide.

Both well-established and new writers are included, representing a diverse spectrum of voices, with poems that range from comic to serious, colloquial to scientific, urban to off-the-grid, narrative to postmodern.