By Anna Taylor It's been a decade since Chuck Stump and Jim Strawn published their first children's book through Four Dolphins Press. The West Virginia co-authors released "The Sad Mad Glad Book: The Anatomy of Your Attitude" in April 2007, and have since added three other books into the "Sad Mad Glad" series. The books are motivational for children of all ages, Strawn explained. "We love to inspire you and teach you about maintaining positive attitudes," Strawn said to a group of 37 fourth-graders Tuesday at Ruffner Elementary School. The original book won a gold medal in the Moonbeam Awards for Children's Books.