Along with her knowledge of Nirvana, Gaar has published such books as "She's a Rebel: The Histroy of Women in Rock and Roll" with the help of John Lennon's widow, Yoko Ono. She has also books on Elvis and Green Day.
So what do you think? Just another Nirvana book telling us the same story us Nirvana fans know? With other books on Nirvana under her belt, I have reason to believe she knows her stuff; or else she's really just a massive fan, like myself.
Who knows, could be an excellent book. She'll be competing alongside Hole guitarist, Eric Erlandson, who had a friendship with Cobain before his death in 1994. Letters to Kurt is available now.
Entertain Us: The Rise of Nirvana is set to be released in July.
You can buy Gillian's other book on Nirvana, The Rough Guide To Nirvana on Amazon here.