The 6+1 Traits of Writing model is used throughout the United States and the world. It has become a highly respected, essential tool for evaluating student writing and planning instruction. Its primary author, Ruth Culham, is unit manager for the assessment program at Northwest Regional Educational Laboratory (NWREL) in Portland, Oregon. As the recognized expert in 6+1 Traits of Writing model, she conducts workshops, designs institutes, writes extensively on the topic. Prior to joining NWREL, Ruth was a classroom teacher for 19 years.