Lateral thinking is a creative problem-solving technique that involves looking at problems or situations from new perspectives. It encourages moving away from traditional patterns of thinking and considering alternatives, even if they seem illogical at first. The key aspects of lateral thinking are that it generates new ideas rather than just analyzing existing ones, makes jumps in logic and associations instead of proceeding step-by-step, and does not require ideas to be fully correct from the start. Edward de Bono, who originated the concept in 1967, developed tools like brainstorming, provocation, and the use of "PO" (possibility operators) to help stimulate lateral thinking.