I have always loved the film version of Jurassic Park. It offers a well-paced, suspenseful story that I feel holds up today. I have also always wanted to read the book because I wanted to explore more of the universe and compare the two versions. I finally read it and really enjoyed it. John Hammond was definitely more delusional in the book version than the film. They explored this in the film a bit, but I think they wanted his character to be a little more sympathetic. For example, in the book, he continued to cling to the notion that his park will please the children of the world while his grandchildren were in grave danger. Up until his death, he was planning other parks in other parts of the word. Lex was more annoying in the book than the film. Granted, she is much younger in the book, but I continued to grow more annoyed as the book went on as she grew upset with Tim and Dr. Grant.
Overall, I really enjoyed the book, it was entertaining and different than the film. I understand why they changed what they did for the film, but at the same time, I would have really enjoyed to see the rafting scenes and the more adventures of Dr. Grant, Lex and Tim. I have to say that I did appreciate that the book delved deeper into the science, but grew tired of Dr. Malcolm's diatribes about scientific discovery. He was definitely more palatable in the film. Highly recommended for anyone who enjoyed the film.
If you're interested in the book, you can find it at: Amazon