My first time reading of Sherlock Holmes stories was from a collection bound as The Complete Sherlock Holmes as I recall. A Study In Scarlet was indeed the first story in the book, and that had me hooked. Not until I had read the complete collection did I consider any other reading. This was over 45 years ago. The Complete Sherlock Holmes did not include The Hound of The Baskervilles. I did not read that for the first time until some time later, probably a few years. I have read most of the stories a number of times, the last time being just a few years ago when I found them in ebook form here.