Weapons of chess actually looks quite good and a way more fun that studying Capablancas chess fundamentals.
Weapon of Chess is light and easy to digest. It can improve a beginner's game. But just because your brain can't comprehend that Capablanca book, does not mean other will experience the same.
There are good beginners endgame book. One of them is Winning Chess Endgame by Seirawan. Pandolfini's Endgame Course is another one. Silman's book is also a good one. These books are easy read and is beneficial and not sub optimal. Again look at your tactical rating it is only 1600 despite the fact that you tried solving more than 1200 problems here. Many masters advocated endgame for beginners and a scrub like you is telling it is sub optimal?
the same regurgitated Silman flunkie routine so beloved by my friend Spongeybob, save if for those that believe in it.