The set up is different. He gives an intro to Conan Doyle and then gets into the stories. For the novels, he gives the first few pages and then quotes from the books. For the short stories, he gives the basic plot but not the end and then quotes. There is a who’s who section. Lots of info. Ok
Read something like a textbook, which I found a bit boring. The quotes, etc., kept me going through it. Good for someone who wanted to "study" Sherlock Holmes.