Valmiki is  accepted as Adikavi or the first poet of the world literature, where as Krsna-Dwaipayana Veda-Vyasa Badarayana is regarded as the greatest poet, philosopher, historian and compiler of the Vedas and the most ancient educator of the world history. He is also regarded as the incarnation (Abesabatar) of Krishna- the supreme absolute divine entity.

He was born as a son of Maharsi Parasar and Yojanagandha in an island and his  colour was  blakish. So he is known as Krishna (black)  Dwaipayana (born in an island) Vyasa is a common title of a person who speaks from the dias, ( a seat called  Vyasasana). As such there may be so many Vyasas. But Vyasa, the son of Parasar is a special name of the person who was also called Veda-Vyasa (the compiler of the Vedas). So the Vyasadeva of the subject matter of this writing is known and revered in so many proper nouns as stated above.

Besides the compilation of the Vedas, Vyasa is regarded as the author of Mahabharat, 18 Puranas and the Brahma Sutra. The greatest epic Mahabharat is also regarded as the first history among the world literature.

Western scholars and some  other scholars who follow the toe of those, hold the  opinion that the Mahabharat and Ramayan are simply allegorical myths. But it is totally misconceived theory. Ramayan is the pivot of the Surya Dynasty where as the Mahabharat is the historical record of the rulers of ancient Bharat Varsa taking the historical account of Krishna and the Pandavas as the main theme.

A popular saying goes as

Vyasocchistam Jagat Sarvam.

Jaha nahin Bharate.

Taha nahin Bharate

Vyasadeva is the fountain-source of all knowledge, wisdom, science, ethics, religion, philosophy, morality, etc. Whatever a human being requires for his physical, mental and spiritual development and perfection, Vyasadev has stored all these in his Mahabharat. Any thing in Bharat Varsa since its original advent, is to be found in the Mahabharat. This is not a hyperbole, but the actual account and it is vivid in the Mahabharat of Vyasadeva or Veda-Vyasa.

Vyasadeva is known as Veda-Vyasa, as he compiled and codified the Vedas systematically into four parts- Rig, Sam, Yajur and Atharva.

He is also known as Vadarayana as he lived under a Vadari tree eating only some fruits of that tree.

Vyasadeva is the  father of Sukadev,  the speaker of Srimad Bhagavatam. No gener-ous has ever born who can surpass Vyasadeva, nor it is possible.

Vyasadeva is his own simile. He is the Avesabatar or incarn-ation of the supreme Divinity.