The books come out next year and will be published by Random House.
The adventures involve little Arsenal fan "TJ", which was Theo Walcott's nickname growing up.
The 20-year-old Walcott said Thursday that he was excited to work on this series because "books played an important part in our family life as I was growing up.''Good stuff. At 20 years old, I certainly wasn't thinking like that.
Philippa Dickinson, who works for publishers Random House, said "we are thrilled to be publishing his books.''
Good for him.