This is an extension of the 1921 and 1931 Thorndike word books, including the data from these counts and from three other counts of over 4Β million words each. Most of the book comprises Part I, being the list of English words occurring at least once per million words of representative general reading matter. The five columns after each alphabetized entry report (1) numbers stating occurrences per million words, (2) the Thorndike general count of 1931, (3) the Lorge magazine count, (4) the Thorndike count of 120 juvenile books, and (5) the Lorge-Thorndike semantic count. Part II is a list of words occurring at least once per four million words of printed usage but not so often as once per million words. A list of the 500 most frequently encountered words and of the 500 next in order completes the volume. The introduction contains a detailed set of instructions for the use of this material by elementary and secondary school teachers in furthering pupil growth in vocabulary. (PsycINFO Database Record (c) 2009 APA, all rights reserved)