I think bitcoin information is a continuous process but the major one to start with is the basic knowledge and understanding of bitcoin, before a beginner invest in bitcoin he should know what he want and how to get it, there are many strategy for different investors it all depends on the category such investor falls into, there are newbies that has sufficient amount both for investment and emergency funds, I think this people should also know that bitcoin is not a short term investment so that their expectations won't be cut off.
The concept or principle of Bitcoin investment doesn't state that everyone most have enough or sufficient knowledge before they could start investing on Bitcoin because in times of Bitcoin investment there is no fundamental analysis you should know before investing, perhaps that's one of the good things about Bitcoin investment because unlike most investment were you will need to have a very good knowledge about it before starting but however in times of Bitcoin you don't need much of that because you can start investing even when you don't no much about it and the strategy to use, however the introduction of DCA method became a game changer for so many persons who are looking for a strategy and also those that feels that there accumulation budget is too small for them to start the Bitcoin journey can now invest through DCA strategy with the believe that they will surely get to there destination in Bitcoin in the future.