Dean Nicholson has become somewhat of an unexpected celebrity.
In September 2018, he quit his job as a manual labourer in Scotland and decided to get on his bike and cycle, around the world.
Along the way - he ran into a stray cat, who would not leave him alone - so Dean decided to take it with him.
He named it Nala - and the pair's journey has captured the attention of hundreds of thousands of people - who now follow the adventure online.
And now, he's told part of his story in his first book Nala's World.
Dean Nicholson joined Mike Hosking to talk about his amazing adventures.