In 2001, writer Charles R. Cross published a biography of Cobain, titled "Heavier Than Heaven". For the book, Cross conducted over 400 interviews, and was given access by Courtney Love to Cobain's journals, lyrics, and diaries. Cross' biography was met with criticism, including allegations of Cross accepting secondhand (and incorrect) information as fact. Friend Everett True, who derided the book as being inaccurate, omissive, and highly biased; he said "Heavier than Heaven" was "the Courtney-sanctioned version of history" or, alternatively, Cross's "Oh, I think I need to find the new Bruce Springsteen now" Kurt Cobain book. However, beyond the criticism, the book contained details about Cobain and Nirvana's career that would have otherwise been unnoted. In 2008, Cross published "Cobain Unseen: Mosaic of an Artist", a compilation of annotated photographs and creations and writings by Cobain throughout his life and career.