Keith Thomsen is the director of the Smart Gardening program – a gardening education program sponsored by the Los Angeles County Department of Public Works. He organizes composting classes and teaches useful ways to create and utilize this environmentally sound practice. While composting is a simple process, it can be intimidating if you don’t know where to start – especially for urban dwellers in apartments. Keith teaches us what’s compostable, how to set up your compost and exactly how and when to use those worms. To learn more about composting, watch our composting videocast with Keith Thomsen's brother, Curtis.