Exhaustive, comprehensive approach to the whole field of energy. Combines the expertise of a textbook with the readability of a shorter newspaper article. Best to take time to allow yourself to work through this densely woven exposition. My favorite parts included the evolution of the oil industry, along with contemporary geopolitics involving pipeline routes and international trade. I lost interest as the focus turned to renewable energy and future sustainability. Nonetheless, this is a substantial resource for anyone curious about any aspect of the field.