It’s part two of our summer meeting of The Urbanist book club, in which we examine how cities could be the solution to society’s biggest challenges. Plus, we discuss the changing face of retail through the story of one man's journey from shop assistant to COO of the legendary music store – HMV.

More from the world’s leading real estate event – Mipim
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Tall Stories 500: Shadows of Errol Flynn in Mallorca
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Meet the mayors at Mipim, the world’s leading real-estate event
44:38