Explore big ideas with the Science Advocate in Chief through this collection of insights, reflections, and tips. Compiled from a successful corporate career that spans over 25 years, 70 patents, and national and international accolades, Dr. Jayshree Seth discusses our relationship with science and engineering while offering her unique perspective on topics surrounding advocacy, interdisciplinary contexts, thoughtful leadership, and inclusive progress. Told with her story as a backdrop, including her childhood experiences and those of her children, Jayshree shares what she's learned in this memorable and entertaining compilation. The Heart of Science is for anyone involved or interested in Science, Technology, Engineering, and Math (STEM) fields, including students, parents, and professionals. Jayshree Seth, Ph.D., is a corporate scientist and chief science advocate for 3M Company, where she has worked for over 27 years to advance science and develop new technologies and environmentally sustainable industrial products. Dr. Seth currently holds 70 patents on a variety of innovations, with several pending. She was the fourth woman and first female engineer inducted into the prestigious 3M Carlton Society. In 2020, Jayshree was awarded the Society for Women Engineers (SWE) highest 'Achievement Award'. Speaking to national and international audiences, her professional roles have taken her to 15 countries to collaborate on projects and address topics of innovation, leadership, science communication and student engagement, advocating for diversity in Science, Technology, Engineering, and Mathematics (STEM).All proceeds of this book go to the Jayshree Seth Scholarship for Women of Color in STEM to be administered by the Society of Women Engineers. The scholarship is aimed at helping underrepresented minorities advance in STEM education and professions related to engineering and technology.