This is a trading forum, so I'll leave the investing topic alone.
But I haven't personally read one trading book -- either physical or ebook or website.
I have just kind of derived my wisdom and insight...from staring at the same chart/instrument/ticker symbol every day for literally years and years...before the light bulb or firestarter kicked in,
You have to loosely keep in mind that for each of those trading author's books...they are sharing their personal wisdom and viewpoints.
Which may or may not, to a certain degree, jive with yours.
Don't approach, or think about, trading...as literally ...just trading;
You have to expand your wisdom, and philosophy about life and trading...both on a vague philosophical sense, and Tactical sense.
If you are a black or white person...you may have a difficult time trading;
You need to be, or think, in a huge Grey constantly dynamic area.