English "Hitchhiker's Guide" series author Douglas Adams was immortalized in a Google Doodle on Monday that celebrates his 61st birthday.
The writer is most famous for "The Hitchhiker's Guide to the Galaxy," which started out in 1978 as a show on BBC Radio 4. It later evolved into a cult-phenomenon science fiction "trilogy" that actually consists of five novels.
The Google Doodle includes elements from Adams' work: Marvin the Paranoid Android, a towel, which Adams wrote "is about the most massively useful thing an interstellar hitchhiker can have," and Arthur Dent's tea in "Hitchhiker's Guide."
Users can also click on the tablet resting on spaceship dashboard to reveal Easter eggs like the Babel fish language translator and the number 42, which served as a joke in the book as "the answer to the ultimate question of life, the universe and everything."
Adams died on May 11, 2001, at 49 years old.