The document discusses identifying omitted information in persuasive texts. It defines significant omitted information as facts that shape an argument's reasoning. Detecting omitted information allows people to make stronger, informed decisions and see flaws in products or opinions. Arguments often omit information due to limitations of time, attention spans, knowledge, and attempts to deceive. Clues to identifying omitted information include missing definitions, perspectives, data sources, procedures for gathering facts, and incomplete data. The document encourages analyzing practice passages to identify omitted information.