I have it very similar. I feel like whenever I need to understand a topic better, I rush and buy a book about it. Or whenever PragProg releases something Elixir related or interesting in some other way, I do the same.
Then after reading few chapters, I just skim the rest of the book to get some kind of overview to know where to look if I need more information.
I think that once someone has a lot of experience and just need to know the language/tool/… specifics, traditional style of book can be too verbose. But I buy them anyway. 
It’s some kind of addiction, I guess. 
That’s why I really liked the Build a Weather Station with Elixir and Nerves: Visualize Your Sensor Data with Phoenix and Grafana by Alexander Koutmos, Bruce A. Tate, Frank Hunleth book. It was short and dense enough to keep me entertained and finish it without forcing myself into it. 
