Basically everything we’re involved with today is text based. One key skill I see all the time that’s lacking is the ability to consume that text and be able to retain it. I see people reading word-for-word, or moving their mouth while they read. Even if you’re not mouthing every word, you may be “saying” that word in your head, a technique called “subvocalization”. Your brain gets bored quickly, if it’s not intaking information fast enough it will wander. And subvocalization causes that. But here’s a great video from Tim Ferris that can teach you a simple technique (that you need to practice) that will help you increase your reading speed.
Give it a try, give it a chance. Good luck.