A great book series to make you walk in London, all clever chapters, great historical and archeological insight, I met at least three other couples who were using the same guidebook and one said they were from London but haven't been to many of the places explained in the book.
However, I wish the book had a bit more context, sometimes I cannot help that the information is somehow missing a central theme, or there is no story/plot behind. John Freely's Strolling Through Istanbul definitely set a high bar in my expectations!
I would recommend supplementing this book with Architecture Foundation's guide app, and Dan Cruickshank's 14 London walks book.