Learn about the importance of composting and how to build your own backyard compost bin at the Mattapoisett Library on Saturday, April 4th from 10:30 a.m. to 12:30 p.m. The program is free, and students in grades 3 through 8 and their families are encouraged to attend this information and hands-on event, part of the library's MOBY (My Own BackYard) science program.

Dr. John Porter, director of agricultural research and development at the A.D. Makepeace Company, will discuss the importance of composting for companies, communities and individuals. He will present how one U.S. city is using composting to reduce its landfills and provide a valuable resource to gardeners.

Bring in a clean, empty two-liter bottle and some kitchen scraps to learn how to make a composter in a bottle and how this material is beneficial in yards and gardens. The group will also learn about the library's new compost bin.

Register by calling the library at 508-758-4171 or visit the children's department.