Hope for Winter: The True Story of A Remarkable Dolphin FriendshipDavid Yates, Craig Hatkoff · First published 2014NonfictionOpen the Tome
Winter, le Dauphin Qui Réapprit à NagerJuliana Hatkoff, Isabelle Allard, Craig Hatkoff, Isabella Hatkoff, Gerald R. Uhlich · First published 2010Open the Tome
KnutDr Gerald R Uhlich, Craig Hatkoff, Isabella Hatkoff, Juliana Hatkoff · First published 2007Open the Tome
Owen and MzeeIsabella Hatkoff, Craig Hatkoff, Paula Kahumbu, Isabella and Craig Hatkoff · First published 2006Open the Tome
