May 12

Tomorrow, Friends of the Cambridge Library hold their annual plant sale. The sale features perennials, annuals and houseplants from local gardeners. This is from 9 to 3 at the Amundson Center downstairs from the library at 200 Spring Street in Cambridge. Call 423-3900 for more information.

The North side Farmers Market continues this Sunday at the North side Town Center at the corner of North Sherman Avenue and Northport Drive. The Market accepts Senior produce vouchers, WIC produce vouchers, and QUEST cards. This is every Sunday from 8 am to noon through October 29.

Sunday, poet Robin Chapman and physicist Julien Sprott read and discuss Images of a Complex. The book mixes Chapman’s poems of everyday experience of change in a complex world metaphorically with Sprott’s full-color computer art generated from billions of versions of only three simple equations for strange attractors. This event is free and open to the public and is at a Room on One’s Own, 307 West Johnson Street, at 2. For more information, call the bookstore at 257-7888 or check roomofonesown.com.