A review of literature related to rate of reading and auding, primarily in non-remedial high school and adult readers, is provided in this paper. After offering a definition of reading, a discussion of those studies which examine rates of reading and auding separately is provided with a summary of studies which directly relate rates of reading and auding. Critical problems in testing language comprehension are considered in relation to the studies mentioned. The author concludes that the norm rate of reading is approximately 185-300 words per minute (WPM), while the norm rate of auding is about 125-200WPM. The maximal rate of auding may be somewhere in the range from 350-450 WPM, but it may be affected by loss of intelligibility of the speech signal. Conflicting evidence exists on a maximal rate of reading. Studies which directly compare rate of reading versus auding reveal little difference between modalities. (Author/KS)