Encyclopedia of Kena Author:John Mechigian After 18 years of playing Keno in Las Vegas, Lake Tahoe, Reo, and Sparks, Nevada, John Mechigian Of Selma, California has written "Encyclopedia of Keno." In this book you will find the results of his survey of Keno which has, in the last decade, more than doubled in volume to become the most popular casino game in Nevada.