It's the Fourth Edition of The American Heritage "RM" Dictionary of the English Language from Houghton Mifflin Company.

As timely as it is timeless, The American Heritage "RM" Dictionary offers the most information about our language in the most accessible style and the most inviting design. The Fourth Edition combines exacting linguistic scholarship with creative innovations in the art of dictionary making. Whether it is the full-color illustration program, the usage advice of over 200 experts -- including John Kenneth Galbraith, Rita Dove, Susan Sontag, Joan Didion, and Calvin Trillin -- or the varied and extensive notes, The American Heritage "RM" Dictionary gives you the resources you need to use the English language with accuracy and grace.

The American Heritage "RM" Dictionary is once again setting the standard in dictionary making in both print and electronic formats. Our complete lexicon, in searchable form, will be available in c-books and software products, on websites and distance-learning platforms, on databases, and on CD/DVD-ROM.

It's no wonder The American Heritage "RM" Dictionary is called an American classic.