David’s extensive and wonderfully arranged selection of audio teachings are available at acim.me. The ebook is divided into 3 sections: the Textual content, the Workbook, along with the Manual for Instructors. All are overflowing with practical spiritual wisdom. Nonetheless the "engine home" from the Course is its day-to-day Workbook lessons, https://awakening-mind.org/resources/a-course-in-miracles/