[allmendream]

He seemed to have made up in quantity what he lacked in quality.

His “Battlefield Earth” series was a dozen books or so IIRC.

[Vanders9]

crap film though...

[ShadowAce]

Battlefield Earth was a huge book.

"Invasion: Earth" was a series of about a dozen or so.

[BlueLancer]

I think it's his "MISSION EARTH" Series that you're thinking about ... 12 or 13 books, pretty much unreadable.

Now, BATTLEFIELD EARTH, although a fairly long book, was, I thought, a pretty good read in a post-Armageddon Alien Invasion Campbellesque-SciFi Swashbucker kind of way: outnumbered, innovative Earthlings battle against all kinds of alien invaders and, because of their pluck and daring, succeed in overthrowing the inter-galactic status quo.