But the point is, I can't see many words. So it doesn't have even sth to attract my attention except the words in the centre part of the page.

Also, when I read some technical book, like Einstein Factor by Wenger, I have to read every words of the procedures of image streaming and other techniques. I can't simply read 1-2 sentences and 1-2 pages in total for the book.

Did I do something wrong?