The 'Nevermind' producer reveals he's helped out on the band's long awaited box set...

Buy stuff for, like, less money with our great offer...

Fancy bidding for a piece of modern rock history?...

The tome becomes one of the fastest-selling rock books ever...and we want to now what you think of them...

We unveil our Top 20...

And share your favourite memories of the band as we prepare to launch a special Nirvana week...

The clip for 'You Know You're Right' features unseen footage...

But Jim Barber does say there are "different versions" of established Nirvana songs on the record...

The eagerly awaited compilation features the unreleased 'You Know You're Right' and 13 of the band's classics...

The long awaited compilation is brought forward in the UK...