The document discusses the importance of visualization when reading. It provides common phrases related to visualization like "let me draw you a map" and "a picture is worth a thousand words." Clear writing can help the reader visualize what they are reading as if seeing a movie in their head, a map in front of them, or a photograph in their mind. It then provides a math word problem asking how many cubes it would take to build an eleven step staircase if six cubes were used to build a three step staircase.