Twenty-five years ago, on April 5, 1994, Kurt Cobain died at the age of 27, a victim of suicide. He left behind the epochal rock music he made as the singer and guitarist for Nirvana, piles of journals and artwork, and a final note that didn’t clear up the contradictions of his short life. Which was probably how he wanted it: The previous year, he had painted on the wall of his rented Seattle home, in large red block letters, “None of You Will Ever Know My Intentions.”

Many Nirvana biographies rehash the basics of Cobain’s story or peddle conspiracy theories that he was murdered, but there are also plenty of ways to go deeper. Here’s what to read, listen to, watch and explore:

Books

‘Journals’ (Riverhead)

With nearly 300 pages of photo replicas of Cobain’s personal journals and letters (and doodles, sketches and song lists), this 2002 book is funny, painful and shockingly intimate: a guided tour of the singer’s own churning psyche. “Its hard to decipher the difference between a sincere entertainer and an honest swindler,” Cobain wrote. Here’s what The New York Times’s Neil Strauss wrote when the book came out.

‘Come as You Are’ (Three Rivers)

This deeply reported 1993 biography by Michael Azerrad, first published while Cobain was alive, was the original bible for Nirvana fans. Its strongest passages evoke the life of young Cobain in Aberdeen, Wash., a child of divorce who would sometimes spend the weekend killing time at a local logging company where his father worked: “He would get into his dad’s van and listen to Queen’s ‘News of the World’ over and over again on the eight-track. Sometimes he’d listen so long that he’d drain the battery and they’d have to find someone to jump-start the engine.”

‘Heavier Than Heaven’ (Hachette)

Charles R. Cross, formerly the editor of the Seattle music paper The Rocket, covered the Nirvana story from early on — and conducted over 400 interviews for this thorough, definitive 2001 biography. Cobain’s widow, the musician Courtney Love, granted Cross extensive interviews and access to Cobain’s archives, including arcana such as a visual assignment he completed during his final stay in rehab: “For ‘surrender,’ he drew a man with a bright light emanating from him. For ‘depressed,’ he showed an umbrella surrounded by ties.” Read The New York Times review.