The document discusses reading comprehension, particularly in understanding technical materials, emphasizing the multi-faceted nature of comprehension skills, such as vocabulary knowledge and the ability to draw inferences. It introduces the SQ3R technique—Survey, Question, Read, Recite, Review—as a structured approach to enhance understanding of complex texts, particularly in subjects like biology and psychology. The document also highlights challenges in reading technical material, including individual differences and the need for visualization to aid comprehension.