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Man learning The Knowledge, a test which all taxi drivers have to pass before they can drive a licensed London black cab Stock Photo - Alamy
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The secrets behind Transport for London's Black Cab tests and if they really do have to remember 25,000 streets - MyLondon
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The Knowledge: The World's Toughest Taxi Test review – nervous would-be cabbies rack their brains | Television | The Guardian
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London Black Cab crisis: Big push for new drivers to take The Knowledge with fears over future of famous taxis
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Knowledge of the Future - Black Cab is set for change|Knowledge of the Future - Black Cab is set for change
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Black cab drivers face battle for existence amid calls to scrap world-famous Knowledge taxi test | The Sun
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The Knowledge, London's Legendary Taxi-Driver Test, Puts Up a Fight in the Age of GPS - The New York Times
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