From the Lovecamden.org website

From historic streets and giant green spaces to amazing architecture and secret stories, here are walks and guides to help you discover Camden.

Got an hour to kill or want to find the best bits of one area? Then take a look at the itineraries. Some of the walk pages have accompanying videos as well as free downloadable maps.

http://www.lovecamden.org/walks

Or download a free pdf and follow in the footsteps of Kenneth Williams:
http://www.lovecamden.org/hindsites-kenneth-williams-walk

Literary culture more your thing?  Try the Charles Dickens walk:
http://www.lovecamden.org/hindsites-charles-dickens-walk