Dr Joe has made free detailed descriptions available, giving the steps of each of the meditations referenced in Becoming Supernatural at the following link:

Becoming Supernatural Meditation Information Page

This will give you all the information that you need as to how to participate in and perform each of the meditations referenced in the book.

Alternatively, if you would prefer the guided version of the meditations referenced in the book, you can find them for purchase at the following links:

Chapter 2: The Generous Present Moment Meditation

Chapter 3: Tuning In to New Potentials Meditation

Chapter 4: Blessing of the Energy Centers Meditation

Chapter 5: Reconditioning the Body to a New Mind Meditation

Chapter 9: The Walking Meditation: Stepping into Your Future

Chapter 11: Space-Time, Time-Space Meditation

Chapter 12: The Pineal Gland: Tuning in to Higher Dimensions of Time & Space Meditation

Chapter 13: Project Coherence: Raising the Earth's Electromagnetic Field

Each meditation includes a detailed introduction covering the science and additional information that you will need to participate in the meditation.