Character art duo Tado are best known for their commercial and charitable work for the likes of Gola and Comic Relief, but the couple known to their friends as Mike and Katie have just seen their first children's book released by Scholastic.

Written by Jon Hinton and illustrated by Tado, Monster Trucks: The Big Race is a fun and exciting book aimed at 3-6 year olds. Its heroes are six big-wheeled trucks called Bolt, Chunk, Roxy, Fizz, Newton and Masher who – as you'd expect – get into all kinds of scrapes.

We want to know more, so dropped Mike and Katie a line – who, as usual, replied in one voice.

NB: Why did you first want to do a children’s book?

M+K: "We've wanted to do one for as long as we can remember really. It's always seemed a very natural thing for us to do with our characters and the world they live in.

"There's usually a story behind each of our characters that we draw and we always try to give them personalties, so to bring a set of them to life in a book has been a bit of a dream come true."

Use the slideshow controls above and right to read the rest of the interview and see more of the artwork and sketches.