It's a members-only library but you might be granted access with a research request. The writer's room is great but there's a few special, hidden corners among the bookshelves to tuck yourself away in.
This is my favourite place to have a morning coffee in London. Its real chilled and the music is always perfectly set to welcome the day in, its usually something I have never heard before too. The coffee is good and the tip jar they have is the best tip jar in the world so make sure you bring a bag of pennies. Sit with your sketch book and have a lil think.
Archive collection of surgical instruments - anatomy and pathology - dental instruments - medicine and surgery (basically a lot of dead things in jars, really interesting to draw from).