Reddit mentions of Godzilla Returns

There's the Godzilla: With Lights and Sound book for the new movie.

Godzilla vs Gigan and the Smog Monster picture book, obviously used is much cheaper.

[Godzilla on Monster Island] (http://www.amazon.com/Godzilla-Monster-Island-Pictureback-R/dp/0679880801/ref=sr_1_10?s=books&ie=UTF8&qid=1412126648&sr=1-10&keywords=godzilla), Godzilla Likes to Roar, and Who's Afraid of Godzilla and great but pricey even used.

And I'm not sure of the reading level of your child but there are the Scott Ciencin books.

• Godzilla: King of the Monsters
  
• Godzilla Invades America
  
• Godzilla vs the Space Monsters
  
• Godzilla: Journey to Monster Island
  
  And there's the more advanced series by Marc Cerasini:
  
  
• Godzilla Returns
  
• Godzilla 2000
  
• Godzilla at World's End
  
• Godzilla vs the Robot Monsters
  
  

If you're looking to read some decent adult Godzilla books check out Marc Cerasini's 4 book series. My favorites are the first two, Godzilla Returns and Godzilla 2000.