H. David Campbell is a retired sales executive. He is a grandfather and a great grandfather. He worked in the public schools as a volunteer for twenty years, helping kids with thei...lihat lebih banyakH. David Campbell is a retired sales executive. He is a grandfather and a great grandfather. He worked in the public schools as a volunteer for twenty years, helping kids with their reading. These books are for kids who are eight to twelve years old. He hopes that the kids will continue to enjoy reading his books.lihat lebih sedikit