NEW YORK (AP) — The widow of Chris Kyle, the former Navy Seal and best-selling author shot dead in February, has contributed a foreword and afterword to a book her husband had been working on at the time of his death.

William Morrow, an imprint of HarperCollins Publishers, announced Monday that Taya Kyle’s tribute will be included in “American Gun: A History of the U.S. in Ten Firearms.” The book comes out June 4 and was written by Chris Kyle and William Doyle. Chris Kyle’s previous work was the million-selling autobiography “American Sniper.”