Sand, salt, iron, copper, oil and lithium. They built our world, and they will transform our future.

These are the six most crucial substances in human history. They took us from the Dark Ages to the present day. They power our computers and phones, build our homes and offices, and create life-saving medicines. But most of us take them completely for granted.

In Material World, Ed Conway travels the globe - from the sweltering depths of the deepest mine in Europe, to spotless silicon chip factories in Taiwan, to the eerie green pools where lithium originates - to uncover a secret world we rarely see. Revealing the true marvel of these substances, he follows the mind-boggling journeys, miraculous processes and little-known companies that turn the raw materials we all need into products of astonishing complexity.

As we wrestle with climate change, energy crises and the threat of new global conflict, Conway shows why these substances matter more than ever before, and how the hidden battle to control them will shape our geopolitical future. This is the story of civilisation - our ambitions and glory, innovations and appetites - from a new perspective: literally from the ground up.

Heat Transport and Energetics of the Earth and Rocky Planets provides a better understanding of the interior of the Earth by addressing the processes related to the motion of heat in large bodies. By addressing issues such as the effect of self-gravitation on the thermal state of the Earth, the effect of length-scales on heat transport, important observations of Earth, and a comparison to the behavior of other rocky bodies, readers will find clearly delineated discussions on the thermal state and evolution of the Earth. Using a combination of fundamentals, new developments and scientific and mathematical principles, the book summarizes the state-of-the-art. This timely reference is an important resource for geophysicists, planetary scientists, geologists, geochemists, and seismologists to gain a better understanding of the interior, formation and evolution of planetary bodies.