First published in 1921, “Your Invisible Power: Working Principles and Concrete Examples in Applied Mental Science” is the influential self-help book by Geneviève Behrend. The author was initially a student of the Christian Science movement until she read lectures given by Thomas Troward and became a student of his New Thought discipline known as Mental Science. In “Your Invisible Power”, Behrend explains in detail how to use the incredible mental power available to everyone to manifest and create what they most want. As Behrend states in the beginning of her work: “These pages have been written with purpose and hope that their suggestions may furnish you a key to open up the way to the attainment of your desires, and to explain that fear should be entirely banished from your effort to obtain possession of the things you desire.” Behrend explains what exactly Mental Science is and how to apply its teachings in everyday life. Full of specific examples from her own life and practical advice for understanding and incorporating Troward’s teachings, “Your Invisible Power” is an inspiring and accessible self-help guide that continues to assist readers in having a better and more fulfilling life.