My First Day At Big School depicts a young girl's experiences with the start of First Grade, which represents big changes for children. Usually it's a new school with new teachers, and other kids they have not met before. This book captures the essence of a child's transition into a new educational chapter, highlighting the excitement, challenges, and growth that come with it. It serves as a reminder that every first day is an opportunity for a beautiful journey to unfold, whether it's a child starting their first day of school or an adult starting their new career.