This book investigates the practical realities, educational requirements, and professional expectations of pursuing a career in the scientific disciplines. Alan Edward Nourse, a physician and author with extensive experience in science communication, utilizes his background to demystify the path toward becoming a professional scientist. He provides a structured framework for students to evaluate their aptitude and interest in various scientific fields, ranging from physics to biology. The text serves as a roadmap for navigating the rigorous academic and personal commitments necessary for success in research and applied science.

Readers frequently note the accessible and encouraging tone of the prose, which remains grounded in the realities of the mid-20th-century scientific landscape. Experts highlight this as a foundational text for students seeking a realistic introduction to the demands of a life in science.