The Mahabharata was a hindu epic written by Ved Vyas, who was also known to be the compiler of Vedas...Well,Mahabharat cannot be said a book,as it was known as an epic scripture whose pages were written and added one after another...He wrote Mahabharat in a metrical verse. Once he pray to lord Brahama,as he wanted a very quick and intelligent writer who could write as fast as he dictate him to write.So, lord Brahama told Vyas ji to go to lord Shiva.When Vyas ji went there,for the help of lord Shiva,He asked him to take away his little son,lord Ganesh with him.Then,Ved Vyas took lord Ganesh with him.So, Ganesh wrote the whole Mahabharat by the dictation of Ved Vyas,But actually, on the topic of writing, it is determined as Ved Vyas ji had written the Mahabharat because he was the real founder of the Mahabharat...
(PS. The Shrimadbhagwad Geeta is also a part the Mahabharat.)

The author of the Mahabharata
The Mahabharata is an ancient Indian epic that is considered one of the longest and most significant texts in world literature. It is believed to have been written by the sage Vyasa. The epic is written in the form of a poem and is composed in Sanskrit.

Who was Vyasa?
Vyasa, also known as Krishna Dvaipayana, was a sage and a central figure in Hindu mythology. He is considered the author of the Mahabharata as well as the compiler of the Vedas and the author of various other scriptures. Vyasa is revered as one of the Chiranjivis, meaning the immortals, and is believed to be an incarnation of Lord Vishnu.

Composition of the epic
The Mahabharata consists of over 200,000 verses and is divided into 18 books or sections known as parvas. These parvas contain various stories, teachings, and philosophical discourses. The epic narrates the story of the Kuru dynasty, focusing primarily on the conflict between two branches of the family, the Pandavas and the Kauravas.

Historical and mythological elements
The Mahabharata incorporates both historical and mythological elements. It provides insights into ancient Indian society, culture, and religious practices. The epic contains numerous subplots, including stories of individual characters, moral dilemmas, and philosophical teachings. It explores complex themes such as duty, righteousness, and the nature of existence.

Significance and influence
The Mahabharata holds immense cultural, religious, and literary significance in India and beyond. It has inspired countless adaptations, retellings, and performances in various forms of art, including theater, dance, and literature. The epic has also influenced other works of literature and has been a source of inspiration for generations.

Conclusion
In conclusion, the Mahabharata is an ancient Indian epic written by the sage Vyasa. It is a vast and complex text that explores various aspects of life and provides insights into Indian culture and philosophy. The epic continues to be revered and cherished for its timeless wisdom and universal themes.