Ultrasound has become a cornerstone of modern medical diagnostics due to its speed, cost-effectiveness, and versatility. With the advent of bedside and handheld ultrasound devices, mastery of this modality is increasingly crucial for medical professionals. This book, written primarily by senior medical students, is designed to support junior medical students by offering a concise summary of ultrasound physics and image acquisition. It covers key organ systems, including the heart, lungs, abdomen, and blood vessels, and features a wide array of clinically relevant ultrasound images commonly encountered in medical school. Ultimately, we hope this guide serves as a practical resource that enhances students' understanding and interpretation of ultrasound images.