Around a period of eight decades, Schucman transcribed what can become A Program in Miracles, amounting to three amounts: the Text, the Workbook for Students, and the Information for Teachers. The Text lies out the theoretical foundation of the program, elaborating on the key concepts and principles. The Book for Pupils contains 365 instructions, one for each time of the entire year, designed to guide the reader via a day-to-day training of using the course's teachings. The Guide for Teachers gives more advice on how best to realize and train the rules of A Program in Miracles to others.

One of many central subjects of A Class in Wonders is the thought of forgiveness. The course shows that correct forgiveness is the main element to inner peace and awareness to one's heavenly nature. According to their teachings, forgiveness is not simply a moral or moral  the mystical teachings of Jesus but a basic change in perception. It involves letting move of judgments, issues, and the perception of crime, and as an alternative, seeing the planet and oneself through the contact of love and acceptance. A Class in Miracles highlights that correct forgiveness results in the acceptance that we are all interconnected and that divorce from each other is definitely an illusion.

Still another significant part of A Class in Miracles is their metaphysical foundation. The class presents a dualistic see of reality, distinguishing between the ego, which represents separation, concern, and illusions, and the Sacred Nature, which symbolizes enjoy, reality, and spiritual guidance. It shows that the ego is the source of enduring and struggle, as the Sacred Heart provides a pathway to healing and awakening. The target of the class is to greatly help persons transcend the ego's confined perception and align with the Sacred Spirit's guidance.

A Class in Miracles also introduces the thought of wonders, which are understood as adjustments in understanding which come from the host to love and forgiveness. Wonders, in that situation, are not supernatural activities but rather experiences where individuals see the facts in some one beyond their vanity and limitations. These experiences can be both personal and cultural, as people come to understand their divine nature and the divine character of others. Miracles are viewed as the natural outcome of exercising the course's teachings.