Formerly a children's book editor, Jen Arena has written over 50 books for kids, including Lady Liberty's Holiday. When she's not writing or editing, you can find her in her garden curled up with a good book, on the volleyball court, or at her local bookstore. Visit Jen on Twitter at @hallojen and at jenarenabooks.com. Lorena Alvarez was born and raised in Bogota, and studied Graphic Design and Arts at the Universidad Nacional de Colombia. Since 2008, she has been part of "La Procesion Puppet Club," an experimental puppetry group of illustrators and visual artists. She is the author-illustrator of Nightlights. Visit her on the Web at LorenaAlvarez.com.