I've seen plenty of Holmes books over the years, but I found this one better than most for giving me a feel for time in which Holmes "lived." Wexler does a good job of describing the growing populace of London and the challenges that brought, giving a history of the metropolitan police, and has plenty of photos showing places, people, and even weapons of the day. The section on Holmes on screen is cursory, and not much can be added to Doyle's biography compared to what has been done, but overall any Holmes fan should like having this book around. New Holmes fans will benefit from the general overview as well.