A bibliophile since childhood, Michael Calvello worked in secondhand & antiquarian bookshops in the San Francisco Bay Area, including Bolerium Books, Libros Latinos, Maelstrom Books, and Diluvian Books. Along with Alan Green, he started Bibliopolis and developed BookHound. He is a passionate reader and researcher. He has a background in the Arts, and holds a Master's of Library & Information Science from the University of Texas at Austin, with emphases in History of the Book, Bibliography, and Manuscript Traditions. For several years he owned Owl & Company Bookshop in Oakland.