This document provides information about writing comparison/contrast essays, including their organization and use of signal words. It discusses two main organizational methods - point-by-point and block. For point-by-point, each point of comparison becomes a paragraph, while block groups all similarities together and all differences together. The document also lists many comparison and contrast signal words to introduce similarities and differences and show concession or direct opposition between items. These signal words help refer back and forth between items being compared or contrasted.