This article describes "seductive details" as attention-grabbing, irrelevant pieces of information. They can be words, illustrations, photographs, animations, narrations, videos, or sounds. Studying the effects of seductive details is a growing area of research--but it is far enough along to merit teachers' interest: there are over 20 years and dozens of high-quality studies to draw from. There is strong evidence that when instructional materials include seductive details, students' learning likely suffers. This article begins with a brief introduction to the learning process, then proceeds to highlight how seductive details hurt learning and to what extent. Next, the author suggests three tips to reduce their detrimental impact on learning and concludes with concrete examples.