Sundays 8pm to 11pm on Radio 2
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Yahaya Baruwa was in the red chair to talk about his book, Struggles Of A Dreamer.
Baruwa sells his book on the street and by going door-to-door, having knocked on, by his count, 27,523 doors.
Baruwa's message is about motivating people to go for it.
"(I want to) live in a world where people aren't afraid to just go out and try that thing they want to do, rather than say, 'Oh, I'm gonna wait 'til later,'" said Baruwa. "Go out and try it."