I've been looking forward to the release of ACD's Dangerous Work: Diary Of An Arctic Adventure since I first heard about the project. Not only will it be neat to read the journal of a very young (only 23) ACD (while working as a doctor aboard a whaling ship no less), but this book is edited and annotated by notable Sherlockian scholars/historians Jon Lellenberg and Daniel Stashower. And this isn't the first time they've worked on the writings of ACD. Last year they published ACD's first attempt at fiction The Narrative of John Smith, which had purportedly been lost in the post c.1883.
Very excited for this one.