Francesca Simon MBE spent her childhood on the beach in California and started writing stories at the age of eight. She wrote her first Horrid Henry book in 1994. Horrid Henry has gone on to conquer the globe; his adventures are published in 27 languages and have sold millions of copies worldwide.

Francesca has won the Children's Book of the Year Award and been a judge for the Guardian Children's Fiction Prize and the Roald Dahl Funny Prize. In 2009, in one of the proudest moments of her career, Francesca was awarded a Gold Blue Peter badge. She was appointed MBE in the 2023 New Year Honours.

Francesca is also a passionate ambassador for children's literacy and is a trustee of the World Book Day charity. She lives in North London with her family.

Visit Francesca's website at www.francescasimon.com and keep up-to-date with Horrid Henry at www.horridhenry.co.uk. You can also follow her on Twitter @simon_francesca

Steve has been a life-long doodler, studying fine art and filmmaking in Nottingham and Animation at the Royal College of Art. He has illustrated various children's books including the bestselling Dennis the Menace fiction series, Harry Hill's Matt Mills series and Francesca Simon's Terrible Viking books.