Shannon Messenger is a notable author with a successful career in writing. She has written the Keeper of the Lost Cities series, which is geared towards a middle-grade audience, as well as the Sky Fall series for young adults. Her books have received significant recognition, including being featured on state reading lists.

They have also been published in many countries and translated into various languages, indicating a broad reach and appeal. Further information about Shannon Messenger and her work is available from the source, including details about her achievements and publications.