This module discusses validity, logic, contradictions, consistency, and author's assumptions when reading texts. It defines argument as attempting to persuade the reader of a conclusion using reasons. As a reader, you must identify the author's argument and decide if they substantiated it. Logic uses valid reasoning - readers must analyze if the author's argument has a logical sequence. Contradiction is when facts don't agree, while consistency is when facts align. Readers should identify any inconsistencies. Author's assumptions are unstated premises - readers must be aware of what authors assume they already know.