I used to have difficulties to read and get something out of a book. But, recently, I learned a few speed reading techniques from Jim Kwik and Tim Ferris. With that, the pace of reading got in a magic way that the knowleadge was readable. Before that, I used to come and go, back and forward until the paragraph was understandable.
Another point: read as if you going have to use it later. read as is you are going to teach someone later. Read imagining you using it later.
Contributors: Ricardo de Andrade Nakano from Nakano Soft