About Mark Danna Mark Danna is a full-time veteran puzzlemaker. He is the writer of the syndicated newspaper puzzle Wordy Gurdy, author of 16 word search books, a former Associate Editor of Games magazine, and a member of American Mensa??. Books by Mark Danna Mensa 365 Brain Puzzlers Page-A-Day Calendar 2016 by (author) Mark Danna & Fraser Simpson Mensa 365 Brain Puzzlers 2015 Page-A-Day Calendar by (author) Mark Danna & Fraser Simpson Mensa 365 Brain Puzzlers 2014 Page-A-Day Calendar by (author) Mark Danna & Fraser Simpson Mensa 365 Brain Puzzlers 2013 Page-A-Day Calendar by (author) Mark Danna & Fraser Simpson Mensa 365 Brain Puzzlers 2012 Calendar by (author) Mark Danna & Fraser Simpson Mensa 365 Brain Puzzlers Calendar 2011 by (author) Mark Danna & Fraser Simpson Mensa 365 Brain Puzzlers Page-A-Day Calendar 2010 by (author) Mark Danna & Fraser Simpson