Seven Brief Lessons on Physics by Carlo Rovelli
Are you curious about the universe, but like me found A Brief History of Time too difficult? This is the book for you. As elegant, simple and robust as the great equations that have shaped physics, this book really does contain the universe. Don't be fooled by its slender nature; this is a profound and beautiful piece of writing that will have you looking at the world around you with deeper understanding and a new sense of wonder. Humane, humble and uplifting, it's a great read for dark days.