Cuneiform writing uses wedge shapes impressed on (usually small) clay tablets, inscribed on stone monuments, or rarely even engraved on metal.
Cuneiform is a unique way of writing that developed in Ancient Mesopotamia. Ancient West Asian scripts were logographic, syllabic, or alphabetic. Logographic writing uses one sign for one word, like in Chinese. Syllabic writing uses one sign for one syllable, like in Japanese Hiragana. Alphabetic writing uses one sign for a letter, such as in Latin script. The earliest Mesopotamian scripts used pictograms, which are logographic pictures. However, they had become thoroughly abstract cuneiform (“wedge-shaped”) signs by the middle of the 3rd millennium BC. The Egyptian language was also written logographically, using pictograms called hierogryphs (“sacred carved letters”), although it was recorded also in other scripts.
Cuneiform was used logographically, syllabically, and alphabetically over thousands of years for many languages.
As cuneiform was adapted to other languages beginning in the alter 3rd millennium BC, it was also syllabically (notably for Akkadian, a Semitic language). Alphabetic scripts were first developed in the early 2nd millennium BC in the Levant for Phoenician, Aramaic, and Hebrew. Cuneiform was also used as an alphabetic script at Ugarit.
These small cuneiform tablets from LACMA are each no more than a few inches from one tip to another.