What was Albert favorite book?

There's no record of Albert Einstein having a single "favorite book." He was a voracious reader with a wide range of interests, and his reading list likely changed over time.

While we don't know his absolute favorite, we do know that he enjoyed:

* Philosophy: He admired thinkers like Spinoza, Hume, and Schopenhauer.

* Science and Mathematics: He was fascinated by works on physics, mathematics, and astronomy.

* Literature: He was known to enjoy works by authors like Goethe and Tolstoy.

If you're interested in learning more about Albert Einstein's reading habits, you can research his personal library or look for biographies that discuss his intellectual interests.