The 1x1 of sonography focuses on recognizing, naming, and reliably locating all organs, leading structures, and anatomical details across all standard levels. It includes transverse and longitudinal sections to relevant regions, including the thyroid, and illustrates the neighborhood relationships of organs and structures in all three spatial planes. This resource allows for quick orientation without prior knowledge, featuring more than 250 detailed labeled image pairs. It provides body markers with information on the transducer head posture and position for each sonogram, along with over 250 sonographic rules of thumb and important memorization sentences. It covers all relevant lead structures, measured variables, and standard values, making it an ideal supplement to the textbook on sonographic orientation.