Speed of reading nine point type in relation to line width and leading

Abstract

2000 university sophomores were used to determine the influence of line width and leading on the speed of reading 9 point type using 8 to 40 pica line width and solid to 4 point leading material. The optimal rate of reading occurs with line widths of 14 to 30 picas and with 1 to 4 points leading. (PsycInfo Database Record (c) 2025 APA, all rights reserved)