Matthew McConaughey writing book based on life-changing adventures

Oscar winner Matthew McConaughey didn't want to write an ordinary celebrity book.

"This is not a traditional memoir, or an advice book, but rather a playbook based on adventures in my life," McConaughey, 50, said in a statement about Greenlights, which comes out Oct. 20.

"Adventures that have been significant, enlightening, and funny, sometimes because they were meant to be but mostly because they didn't try to be."

According to the book's publisher, Crown, which announced the book on Wednesday, July 29, the actor known for films Dallas Buyers Club and Magic Mike will draw upon a diary he has kept for 35 years.

"He found not only stories, questions, truths, and affirmations, but also a reliable theme," Crown said in a statement.

"From growing up as an adventurous kid in a tough-love Texas home of rule breakers, to revelatory journeys to Australia, Peru and Mali, to his early days in Hollywood and meteoric rise to fame, McConaughey shares how his life experiences have instilled in him the importance of competent values, the power of new experiences and, as he puts it, 'either changing your reality or changing how you see it.'"