'Outlive: The Science and Art of Longevity' by Peter Attia focuses on the importance of preventative medicine over reactive healthcare. The book delves into strategies and scientific principles that can help extend human life and improve health span.

Peter Attia is a physician specializing in the applied science of longevity. He is known for his work in preventative medicine and has a background in surgery, as well as expertise in nutritional biochemistry.

The main themes of 'Outlive' include the importance of preventative medicine, strategies to extend life span, and scientific principles to improve overall health. The book aims to shift focus from reactive healthcare to proactive measures that can enhance longevity and wellness.

'Sapiens: A Brief History of Humankind' by Yuval Noah Harari takes a big-picture view of human history. It explains the main themes of human evolution and development without getting bogged down in details. The book also debunks many popular myths about human history, such as the idea that people today live happier lives or have better diets than our hunter-gatherer predecessors. It ends with an epilogue discussing the future of humankind in light of accelerating technological progress, making it particularly relevant given recent advances in AI.

'Sapiens: A Brief History of Humankind' discusses several main themes, including the cognitive revolution, the agricultural revolution, the unification of humankind, and the scientific revolution. The book explores how these events have shaped human societies, cultures, and economies. It also delves into the impact of technological advancements on the future of humanity.

Yuval Noah Harari is an Israeli historian and professor in the Department of History at the Hebrew University of Jerusalem. He is known for his bestselling books 'Sapiens: A Brief History of Humankind', 'Homo Deus: A Brief History of Tomorrow', and '21 Lessons for the 21st Century'. Harari's work focuses on broad historical processes and their implications for the future.

Pros of 'Sapiens: A Brief History of Humankind' include its broad, comprehensive view of human history and its ability to debunk popular myths. The book is also praised for its engaging writing style and thought-provoking insights. Cons might include its broad scope, which can sometimes lead to oversimplification of complex historical events, and the fact that some readers may find its speculative future predictions less convincing.