Lord Brahma is the first of the Hindu Trinity. He is the Creator. He is regarded as the Supreme being, the God of Gods. In the beginning Brahma was the Universe, he created Gods. After having created Gods, he placed them in these worlds eg: AGNI (Fire) in this world, Vayu (Air) in the atmosphere and Surya (Sun) in the sky. Brahma generated the Gods and the entire world. Within him is the Universe.
He is a four headed God. He has four hands , each hand is holding a sacrificial tool (sruva), the Vedas (knowledge), a water pot (kamandalu) and a rosary respectively.
He appears seated on a lotus which is a symbol of glorious existence. His vehicle is the goose (hans) which is known for its judgement between good and bad.
His consort is Saraswati, the Goddess of learning.
You can also read the Mantras for Gods and Goddesses here.