An ideal accompanying text for my courses in marine cycling of elements for M. Sc. students in biology and for graduate students from various disciplines. It could be seen as a travel guide to a country with a quite diverse landscape of basic concepts and a rapidly evolving society of new observations and interpretations. A travel guide has to cover many different topics on a limited number of pages...[the authors] manage this without compromising the usefulness of this book. ...They review contradicting interpretations openly stating their opinions and highlight many open questions, which will keep the next generations of researchers busy. I will certainly use this book and recommend it to my students and colleagues." - Dieter Wolf-Gladrow, Quarterly Review of Biology "The text is a solid introduction to the concepts, models, equations, and techniques governing the field of marine carbon chemistry and carbon cycling.