I have mixed feeling on Library Genesis and Sci-Hub. First and foremost, I recognize it's essential good in providing journal access for all and it's reformation of academic publishing. However, I can go to Library Genesis, and download just about any book I want, load it on a kindle, and am good to go! Does this hurt small time publishers and de-incentivise authoring niche technical works? Particularly for the niche technical topics, authoring a book is not possible as a full time job, and I wish there were a good mechanism to promote the creation of this type of work.