Paul van der Sterren's FCO (Fundamental Chess Openings) is probably the most readable of the opening encyclopedias if you want to stick with books. He'll take a paragraph sometimes to explain 1 move. Still, theory involves memorization.
Another approach is to go digital with a program like chessking's "chess openings, what you need to know". It's a standalone program that's usually bundled with courses on tactics, endgames, and strategy, but you can buy it by itself for about $30. You can go through all the sidelines or just have it run through the main lines for you. I'm sure there are other programs that do the same thing.
A third approach is to get a database program, filter the games by ECO code and just watch a bunch of games. I use HIARCS because it's relatively cheap, easy to filter the games and comes with a good engine, but I'm sure there are others that will do the same thing. One other reason I like HIARCS is you can choose to play the engine from any of around 100 common openings to get an idea of how the middlegame typically unfolds. Good luck!
I read tactics, strategic, positional and endgame books without a problem. But opening books are so boring. They just cover lines, then more lines and sideline lines, all stuff you're meant to remember that I'll forget in a few minutes, so what's the solution? Many people say you shouldn't study openings until you've gotten to at least 1700, but I'm the sort of person who struggles in openings, so I'm unsure of what to do. Suggestions are much appreciated.