While traditional finance emphasizes tools designed to optimize returns and minimize risks, this book illustrates that psychology often explains our decisions better than classical financial theory. By examining real-world investor behaviors, it highlights how psychological biases influence financial choices and offers strategies to overcome them for improved financial success. This seventh edition provides an accessible approach with relatable everyday examples and addresses recent trends such as fintech, cryptocurrencies, generational biases, social media influences, and the COVID-19 pandemic. Practical case studies, concise chapter summaries, and reflective questions help readers evaluate their understanding, further enhanced by supplementary online educational resources.