This diagram shows a topic which has been broken into four parts. The first box with the title represents an introductory paragraph in which the thesis is stated. The four boxes with bold face print under the introduction represent main ideas. Each main idea is followed by a series of boxes containing supporting details and examples that could be drawn out at the sentence level (the "W" of TOWER). Each box represents at least one paragraph. The box at the bottom represents the concluding paragraph in which the main ideas are integrated. The aim is to restate the theme or thesis in a new way which leads to further thought on the subject.

Rourke, Ph.D., Byron P, and Tsatsanis, Katherine. "Syndrome of Nonverbal Learning Disabilities: Psycholinguistic Assets and Deficits." Topics in Language Disorders 16.2 (1996): 30-44.

Shames, G. and Elisabeth Wiig. Human Communication Disorders. Columbus: Merril, 1986.

Wong, Bernice. The ABCs of Learning Disabilities. San Diego: Academic Press, 1996.