Skimming and scanning are sometimes referred to as types of reading and at other times, as skills.
Skimming involves a thorough overview of a text and implies a reading competence. Scanning is more a limited activity, only retrieving information relevant to a purpose.
Brown (1994) suggest ed that "perhaps the two most valuable reading strategies for learners as well as native speakers are skimming and scanning." (p.283)
Pugh (1978) suggested that since scanning is a less complex style of reading it can be introduced first. Skimming requires greater fluency and more practice is required, so it should be introduced later.
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