Everyone who works at Daunt Books seems to have the answer to any question you might have, watching my large dog carefully navigate their narrow aisles is always fun too.
Best Udon in London, with an exceptional specials board. The head chef Shuko Oda opened the first restaurant in Soho 11 years ago, and they now have restaurants in the City and on Broadway market. Great for kids, our son loves the Mackerel udon.
A great place to start the day if you are in South London is Federation Coffee in Brixton Village. The food is great and so is the coffee. This is a very chilled place where you can get both and indoor and outdoor experience (even though the whole place is under the Village roof).