Simple texts were written with a stylus on clay tablets. Inscriptions were encarved on stone.
A clay tablet has two sides, recto and verso. Each side is subdivided into (generally) two columns. Within each column, lines are from top to bottom, writing is from left to right.
A character consists of a specific arragement of wedges.
Words are commonly separated by a small space. There are no regular punctuation marks, except that a “gloss wedge” (combination of two Winkelhaken) is occasionally used to mark a syntactic boundary. A sentence, but generally not a word may cross the end of a line.
The writing system employs ~600 characters.
A cuneiform character may have one of three functions:
Over time, syllabographic writing prevails. In the beginning, however, concepts are often represented by a logogram, which is supplemented by a set of syllabograms indicating inflection.
Akkadian does not have a very complex syllable structure. Nevertheless, the association among (phonological) syllables and syllabograms is far from biunique:
The Akkadians adopted cuneiform writing from the Sumerians at about
The Akkadians therefore took up the principle of syllabic writing, which the Sumerians had used only occasionally, and implemented it more systematically. They then applied the same principle to the Sumerian texts that they wrote, providing us – although belatedly – with the phonological form of Sumerian words which the Sumerians had withheld from posterity.
However, even Akkadian syllabic writing was not wholly systematic:
After adopting cuneiform writing from the Sumerians, the Akkadians spread it over the entire Near and Middle East. Cuneiform writing was used in Assur, Elam, Mari, Mitanni1, Northern Syria (from -2000), the Hittite empire (from -1900), Palestine. At around -1500, Akkadian, written in cuneiform, was even used in Egypt for diplomatic correspondence (Falkenstein 1964:12).
An excellent explanation of the cuneiform writing system is on John Heise's website.
A vivid impression of the physical properties of the script is gained on the website of the Digital Hammurabi project.
1 The Mitanni kingdom existed in the 15th and 14 cent. BC in the region of what is roughly Kurdistan. The language spoken was Hurrian.