Alastair Chisholm began his career as a software developer in Edinburgh. His interest in devising and tackling logical problems led him to create the hugely successful Kids Book of Sudoku and Kids Book of Karuko puzzle book series. The Prince and the Witch and the Thief and the Bears is his first picture book.

Alex Willmore has been drawing characters since the moment he first picked up a pencil. His illustration work for kids includes such titles as Duck's Ditty and The New LiBEARian.

Alex has produced illustrations for a number of publishers, creating puzzles, picture books, packaging design, surface pattern for kids wear, stationery and greeting cards. He lives in the UK.