Rig Veda is a very old and important book in Hinduism. It has many hymns (like poems) in an ancient language called Vedic Sanskrit.
Rig Veda is divided into ten parts called Mandalas. Each part has hymns about different things like gods and life.
Rig Veda is the oldest known text in a language that is related to many languages spoken in Europe and Asia.
People from different families wrote the hymns. Some hymns were written by the Angiras family and some by the Kanva family.
Many of the hymns are still used as prayers in Hindu rituals.
Rig Veda tells us about how the world began, the gods, and how to live a good life.
The book talks a lot about gods like Indra, Varuna, Agni, Surya, and Rudra, who is the early form of Lord Shiva.
The Gayatri mantra, which is very famous, is also in Rig Veda.
Rig Veda also talks about society, like how it was divided into different groups and some other beliefs.
Even though it is very old, people still study and respect Rig Veda for its teachings and history.