Footprints Of London A huge range of themed walks from trained guides. Group sizes are always limited. Charles Booth Walks can also be booked through Eventbrite here.
www.booksteps.co.uk One for the bibliophiles. Anthony Davies specialises in London walks for people who love books.
London Undone Catherine Cartwright is a Blue Badge guide who can guide you just about anywhere in London.
London Hut All things London.