The introduction should let you know who the book is intended for, and what it covers.

By understanding the layout of the material you're reading, you can extract the information you want efficiently.

These tend to give a fragmented coverage of an area.

This emphasizes information in your mind, and helps you to review important points later.

Doing this also helps you keep your mind focused on the material, and stops you thinking about other things.

If you're worried about damaging a book by marking it up, ask yourself how much your investment of time is worth.

If the book is inexpensive, or if the benefit that you get from the book substantially exceeds its value, then don't worry too much about marking it. ) Different types of documents hold information in different places and in different ways, and they have different depths and breadths of coverage.

This is especially important for long or detailed documents.

When you're reading a document or book, it's easy to accept the writer's structure of thought.

This means that you may not notice when important information has been left out, or that an irrelevant detail has been included.

An effective way to combat this is to make up your own table of contents before you start reading.

The most effective way of getting information from magazines is to scan the contents tables or indexes and turn directly to interesting articles.