Favorite Childhood Book

Even though it scared the crap out of me, this is the one book that has stuck with me through the years!  Bartholomew and the Oobleck by Dr. Seuss does an amazing job of invoking childhood terror at the idea of this goop taking over the planet.  I had the audio book (on record - yes I'm that old) and could never get very far in before I had to shut it off.  I suspect the narrator may have been Boris Karloff, which perhaps explains my terror. A book that creates such an intense reaction has to be considered a favorite!  I want to books to have an impact on me and this one most certainly did.