This week, Alex Clark and Michael Caines discuss the turbulent history of the Tour de France and wander through London’s richest enclaves 

‘Le Fric: Family, Power and Money: The Business of the Tour de France’ by Alex Duff

‘Serious Money: Walking Plutocratic London’ by Caroline Knowles

‘A Class of Their Own: Adventures in Tutoring the Super-Rich’ by Matt Knott

Produced by Charlotte Pardy