T. rex: Hunter or Scavenger? (Jurassic World)

'T. rex: Hunter or Savenger? (Jurassic World)' is a popular science book written by that discusses the question: Was Tyrannosaurus rex a speedy and savage hunter, or was it a slow-moving scavenger, surviving on scraps left from other dinosaurs’ kills? The world renowned tyrannosaur expert shares the evidence on both sides of the argument in this easy-to-read, easy-to-understand Step into Reading book that young dinosaur enthusiasts will heartily devour.

Holtz published a similar book in 2003. The cover art and overall structure of the two books are identical. However, the cover says that this new edition is "updated and revised".

Reception
Paleontologist Dr. Robert Bakker called it the "best kid rex book ever done."