Lauren Sánchez's new children's book is already a bestseller. But one particular Amazon review is getting noticed.

Jeff Bezos has left a glowing Amazon review for the children’s book, The Fly who Flew to Space, written by his fiancee, Lauren Sanchez. Published on September 10, the illustrated book follows a fly named Flynn who pursues her dream of becoming an astronaut and ends up travelling to space in a rocketship.

Jeff Bezos leaves an Amazon review for Lauren Sanchez new children’s book - The billionaire gave his fiancee five stars and a glowing 11-word review