Join Seymour Chwast and Steven Heller in conversation about Mark Twain’s War Prayer, a lambasting of phony, war-mongering patriotism reinterpreted by one of our finest contemporary illustrators, Seymour Chwast.  Written in 1910 in his 70th year, Mark Twain, having lived through fourteen wars waged just by his own country on others, declined to publish this…