Thanks to Half Price Books for acquiring them from someone else so I could give them a good home. After looking through them they all seem rather interesting & worthwhile to explore more of the TNG universe & some of the props/costumes/ships of the shows.

 
The Continuing Mission (Star Trek: The Next Generation)

http://www.amazon.com/Continuing-Mission-Star-Trek-Generation/dp/0671025597/ref=sr_1_34?ie=UTF8&s=books&qid=1266458556&sr=1-34     
  
The Art of Star Trek (this is the same as Continuing mission but it doesn't cover TNG as much, does have a lot on the original series & movies)

http://www.amazon.com/Art-Star-Trek-Judith-Reeves-Stevens/dp/0671017764/ref=pd_sim_b_3        

 
Star Trek: Deep Space Nine Technical Manual

 http://www.amazon.com/Star-Trek-Space-Technical-Manual/dp/067101563X/ref=pd_sim_b_7