I've been reading a book called,
I kid you not, "How to Read a Book:
The Classic Guide to Intelligent
Adler and Doren identify four levels
1. Elementary: "What does the sentence say?"
This is where speed can be gained
2. Inspectional: "What is the book about?"
Best and most complete reading given a limited time.
Not necessarily reading a book from front to back.
Essentially systematic skimming.
Best and most complete reading given unlimited time.
For the sake of understanding.
Reading many books of the same subject at once,
placing them in relation to one another, and
constructing an analysis that may not be found
in any of the books.
Amazon link for those interested: