The fact is, I prefer those early novels to the later ones (those I've read, which I admit are few).
The Writer's Almanac from American Public Media: "It's the birthday of Michael Crichton, (books by this author) born in Chicago (1942), who went to medical school at Harvard and began writing paperback adventure novels to pay for his tuition. On top of his schoolwork, he managed to produce 10,000 words a day, ultimately publishing eight novels in three years, including Zero Cool (1969), The Venom Business (1969), and Drug of Choice (1970).
By the time Crichton finished medical school, he had decided to become a writer, though he said, '[It] struck most people like quitting the Supreme Court to become a bail bondsman.' He's gone on to write many best-selling novels, including The Andromeda Strain (1969), Jurassic Park (1990), and Next (2006)."