Which ancient Greek work describes maritime trade routes from the Red Sea to India?

The Periplus of the Erythraean Sea describes maritime trade routes from the Red Sea to India.

This Greek-language commercial guide was written by an anonymous merchant or navigator, probably in the first century CE. It gives sailing directions, ports, coastal landmarks, winds, goods, and trading communities around the Red Sea, Arabian Sea, and western Indian Ocean.

The work records places such as Berenice, the Arabian ports, the Horn of Africa, and Indian markets including Barygaza and Muziris. Its evidence shows that long-distance exchange linking the Roman world, Arabia, India, and East Africa was already highly organized.

The title’s “Erythraean Sea” means the Red Sea in the broad ancient usage, not simply the modern Red Sea. The text concerns maritime routes that complemented, rather than replaced, overland Silk Road connections.