There are many places you can find a list of high selling romance novels published in 2012, the main website would be guardian.co.uk, or an actual store would be Barnes and Noble. The website would probably be easier though.
It is not recorded at the end of the year so it may have changed but the internet states that the best selling romance novel in 2012 is Hopeless. Fifty Shades of Grey trails not too far behind.
There were a vast array of science fiction books published in 2012. Among the best selling were "Year Zero," "The Long Earth," "Redshirts," and "A Rising Thunder."
Yes; it was published October 2nd 2012 by Hyperion Disney and is still being sold.
Five-Minute Romance - 2012 was released on: USA: 15 August 2012
The cast of The Thing About Romance Is... - 2012 includes: Amy Fleming as Susan
The cast of A Zombie Romance - 2012 includes: Alexandra Copp as Stacey Baxter
The cast of Elevator Romance - 2012 includes: Jamie Criss as Girl Corey Krueger as Guy
A Colorful Romance - 2012 was released on: USA: 22 November 2012 (internet) USA: 17 April 2013 (Ridgewood Film Festival)
Mansome - 2012 Surviving an Office Romance 1-61 was released on: USA: 16 October 2012
The best selling book of 2012 was Fifty Shades of Grey.
Insurgent was published on May 1, 2012.
Dating a Puppet - 2012 Jason Segel Romance 1-4 was released on: USA: 24 August 2012