Far too often, we confuse the time we spend sitting at a desk with productivity. This is a relic from the industrial era where your performance could be measured by how long you sit at a conveyor belt.
We're in the information age now. Productivity is measured in attention, focus and memory - not in the time you spend staring at a book with a blank expression.
It is entirely possible for two people to study the exact same time and for one to drastically outperform the other. There can be a lot of different reasons for this but having the ability to focus longer and absorb more information is key to getting better results with less effort.
There are a lot of books on productivity and speed reading. Hundreds. Probably thousands. There's a reason this one has thousands of great reviews behind it. There's a reason it's the one we love to suggest. Kevin Horsley is one of the few people in the world who holds the title Grandmaster and, after going through this book, you'll see why.
I, like many people, struggle with my attention span while working or studying. I still like my morning coffee in the morning but Unlimited Memory will change the way you study. Very much for the better.
The fact that Amazon give you the audio-book here is a bonus. You can listen to it while in the car or just falling asleep. Personally I like to listen to it a couple of times over to make sure I've really got everything from the book. Sure, you can read it as well but I always feel like I'm being the most productive when I can listen to self improvement stuff while I'd otherwise be wasting time.