The book "Underwater Spaces of the Ocean: 1. The North Atlantic Basin" was written by the authors W. Maurice Ewing, Bruce C. Heesen and Maria Tharp. In this book you will find a detailed description of the physiography of the North Atlantic Ocean, including its bottom. The authors present the results of their research using physical-geographical methods and the latest bottom mapping technologies. The book is accompanied by a physiographic diagram of the North Atlantic basin, which helps to better understand the topography of the underwater world. This publication will be useful for students, scientists, and anyone interested in the study of underwater topography and ocean geology.