What did the books look like in the ancient Mesopotamia? where did the oldest alphabet come from?

The first written monuments known to historians belong to the ancient Sumerians who lived in the interfluve. For more than five thousand years ago, they used wedge-shaped dents, which they left on clay tablets, to record documents and stories. After the end of the recording, the tablets were burned in an oven or in the sun, after which it was impossible to change or erase anything. Sumerian cuneiform became the basis for the first real alphabet, which was invented by the Semites who lived in the ancient state of Ugarit.