Your Invisible Power by Genevieve Behrend is a guide to harnessing the power of visualization to achieve one's desires. Behrend emphasizes the importance of focused thought, belief, and the law of attraction in manifesting goals. By consistently visualizing what you want, aligning your thoughts with your desires, and maintaining a positive mindset, you can attract the outcomes you seek. The book encourages readers to use their inner creative power to shape their reality.