Since joining Usborne, Minna has written books on everything from pirates and gladiators to jungles and oceans. She studied Maths and Philosophy at university and previously worked as a journalist and illustrator in London, Bogota and New York. In her spare time, she loves writing stories, drawing and playing the guitar. Abigail Wheatley joined Usborne Publishing in 2002 after completing a doctorate on medieval castles. She's still writing books about castles, but has branched out into areas such as science, art and cookery. She lives in a little book-filled house in Kent, with views of a real castle from her bedroom window.