I think this very comprehensive review over at Pitchfork (click here) offers a great overview of everything on offer, and it also works as something of an early career synopsis.
The Box includes:
A 10 album set featuring 6 original studio albums & 2 live albums on CD & 180g audiophile vinyl.Plus, exclusive to the Box Sets:
The Rise and Fall Of Ziggy Stardust And The Spiders From Mars (2003 Ken Scott mix)Re:Call 1: a new 2-disc compilation of non-album singles & b-sides including previously unreleased mono single edit of 'All The Madmen' and the highly sought after 'Holy Holy' original single unavailable since release in 1971.
The CD & Vinyl box sets come with a companion book featuring memorabilia, rare and previously unseen photos, hand written lyrics, original album press reviews and essays from the original album producers.