London is my city, and I have guided here for many years (35 and counting!) When I graduated I decided to study for my Blue Badge qualification that enables me somewhat immodestly to say, yes, I am an expert on London. I still delight in getting people's reactions to this great metropolis and what makes it tick...so be it your first visit or if you are returning, be sure I can organise your own personal itinerary to suit.
For your reassurance and guarantee of quality, I am registered with the Institute of Tourist Guiding, the official body responsible for my profession.