It’s hard to believe this was only released in 2012, because it instantly became part of the common language of tech startups everyone. It was brought up so frequently that by the time I read it in 2013, I assumed it had been around for a decade already. Regardless, it’s a great framework. If all you need is to understand the terminology or the framework, then a YouTube explainer video should do the trick. If, after watching that you want to dive in then by all means—it will be worth your time.