when you skim through a book, turn over the pages quickly and run your eye over the text looking for various pointers which will tell you about the contents of the book
Some people read the first and last paragraphs using headings, summarizes and other organizers as they move down the page or screen. You might read the title, subtitles, subheading, and illustrations. Consider reading the first sentence of each paragraph. This technique is useful when you're seeking specific information rather than reading for comprehension. .