Where do you go to book & start a tour of London? Would appreciate any advice/help!
It really depends what you are looking for, how long you have got and how much you want to spend! There are many many links in Trippy to help you get started. I have just set up a business trying to help people who want a personalised authentic visit to London, www.tripconsul.com - it might be worth a look (free and premium) as it tries to offer automatically personalised trips and uses locals and local knowledge.
Can you give me a bit more detail as to what kind of tour you are looking for?
Most can be booked online but you should have a feel for how you want to see the city. Here are some options:
Some people like to see the main sights but also get a bit of a local feel. You can always ask a black cab driver how much he/she charges for a city tour, they know the most unique places and will be sure to cover all your own must-sees once you have told them what you are looking for.
Like any other large city, London has several hop-on hop-off bus tours. You can arrange for these on the day and online (your hotel can help). Here is one option: http://www.theoriginaltour.com/tour-information/hop-on-hop-off.htm
When it comes to walking tours, you normally have to book online (or via phone) in advance. A few days should guarantee you a place. My favourite are http://www.walks.com/. They have a plethora of tours and all their guides are the best!
Good luck deciding and, if you need more info, just jot down a bit more detail in the comments section.
You should go and try this london food tour: www.londonfoodtour.com
These guys are absolutely amazing!tThe food is great and you'll learn a lot on the city and the food.
Kevin is really funny and the food is delicious.
If you fancy something a little different, try the London Duck Tours - a yellow amphibious craft takes you on a tour of London that is part on land and part along the river: great fun!
I love Context Travel walking tours because of the small groups (no more than 6 people) and the incredibly knowledgeable docents.
Check out London Walks at Walks.com and also look at Viator's London tour options. With Viator, you can book in advance pre-arrival. Otherwise, your hotel should be able to help you. TripAdvisor has a good list of London tours and activities as well.
It sounds hokey, but the Big Red Bus hop on- hop off gies you a good "lay of the land" tour, with commentary. I rode the whole route, then stayed on til I got to the place I wanted to see. The ticket is good for 24 hours. After that, Google walking tours of London, if you want a more up close & personal tour (London is very walkable).