I actually read the article I posted yesterday. Although the dictionary is called the Assyrian dictionary, it is an extensive dictionary and encyclopedic reference on the Akkadian language. It provides not only words, original uses, and cultural context.
This 20 volume monolith published over 55 years is similar to the Hittite dictionary also published by University of Chicago. I actually got to meet one of the people working on the Hittite Dictionary at the Indo-European Language Conference I attended. AWOL just posted some supplements to the Hittite dictionary.