Who is Julia from London Transports and what is their importance? London_Transports English & Literature Julia | London Transports

The protagonist of a story about the search for sexual knowledge in anticipation of losing her virginity at age twenty-nine, Julia finds herself in a pornography store, unable to find anything that offers useful tips on how not to appear foolish. She first considers shopping in pricey Soho, but a knowing colleague in her travel agency suggests Tottenham Court Road. She chooses the largest pornography shop she sees, figuring that it will have the largest selection.