I love these books. I recommend them to everyone I meet, in a borderline annoying way. The facts are not your big standard history lesson, they are interesting and intriguing. The walks are well paced and the instructions are clear.
The graphic design of the cover is questionable and the maps are not overly clear but do not let this put you off!! These books have changed the way I experienced the city I live in and I always have some half remembered facts for parties.