This lecture provides an overview of the MSE 432 exercise course focused on magnetic materials and their applications. It outlines the course structure, including key dates for lectures, experiments, and student presentations. The instructor discusses the organization of group work, emphasizing collaboration among students during experiments and seminars. Students will engage in hands-on activities, including measuring magnetic fields and analyzing data using OOMMF simulations. The grading criteria for the course are detailed, highlighting the importance of individual contributions to group presentations and problem sets. The lecture also introduces various topics related to magnetic materials, such as topology and its influence on electronic properties, as well as the significance of understanding magnetic structures in modern technologies. Overall, the lecture sets the stage for an interactive and comprehensive learning experience in the field of magnetic materials.