The essential concepts of oceanography are descriptively discussed in this advanced book. Oceanography is a quintessential interdisciplinary science and because of its unique setting inside a fluid environment, it makes connections highly effective. These ocean connections have been well elucidated in this book and it reflects a quite explicit multi-environmental and multi-disciplinary character. This book comprises of information regarding distinct topics under extremely distinct settings, with both focused as well as broad-view approaches. It lays stress on the idea that there is a need to comprehend the various minor perspectives in order to understand the bigger picture of the overall mechanism of the ocean.