Unfortunately, as children we're taught that everything we need to know about a subject is found in a book and that the book is the end all and be all. We're taught not to think for ourselves. We're taught to memorize what the books say about a subject and then tested to see if we've memorized the "facts" right.
Therefore, we think hitting the books is where it's at with learning Tarot and it's not.
Take information from all your books if you will, but put that information second to what you feel about the cards yourself. Take each book and think, "Hmmm, what's this person's opinion?" and compare it to your own. Don't pick up the book and memorize what someone else tells you to think. Your own intuition and perception of the cards will be what the cards are about for you in readings. Trust yourself, don't trust the books. What's written in the book is only someone else's opinion, first of all, and second of all, it's all too often a regurgitation of what every book before it has said as to what the cards mean.
Card meanings change with every sitter, with every reading, and with every reader. It's a fluid thing, not something that's like math that's got facts and figures and concrete outcomes.