Sub Pop co-founder Bruce Pavitt has released an ebook of never-before-seen Nirvana photos from the band’s notorious European tour in 1989. Experiencing Nirvana: Grunge in Europe, 1989 is available now via Apple’s iBookstore. It should be noted that this is the Chad Channing era, otherwise known as pre-Dave Grohl. Warning: Sad Kurt photos follow. [via Pitchfork]