[aftabh]

I highly recommend that you consult the original book (also referenced in TFA) as your primary source to find answer to your question.

> Let it be understood at once that we are wholly in favour of the proposition that most people ought to be able to read faster than they do. Too often, there are things we have to read that are not really worth spending a lot of time reading; if we cannot read them quickly, it will be a terrible waste of time. It is true enough that many people read some things too slowly, and that they ought to read them faster. But many people also read some things too fast, and they ought to read those things more slowly. A good speed reading course should therefore teach you to read at many different speeds, not just one speed that is faster than anything you can manage now. It should enable you to vary your rate of reading in accordance with the nature and complexity of the material.

> Excerpt From: Mortimer J. Adler. “How to Read a Book.”