PALM CITY, Fla. — A vending machine at a school in Martin County isn't dispensing sugary snacks, just knowledge and learning.

Citrus Television was formed by Caroline Norris, Giles Pilbrow, and Dominic Brigstocke in 2009 whilst they were devising and producing Horrible Histories for CBBC. In that time, Horrible Histories won ...

In this excerpt from chapter 4, “Sweet Preserves,” she shares how to make homemade pectin from citrus fruits. You can purchase this book from the MOTHER EARTH NEWS store: Preserving Everything.