"Einstein: His Life and Universe" by Walter Isaacson offers an in-depth look at the life of the renowned physicist Albert Einstein. The biography explores not only his groundbreaking contributions to science, including the theory of relativity, but also his personal struggles and relationships. Isaacson draws on a wealth of sources, including letters and interviews, to paint a holistic picture of Einstein as a thinker who was deeply engaged with the social and political issues of his time.

In contrast, "Split Second" by Douglas E. Richards delves into the realm of science fiction, focusing on the themes of time travel and the consequences of altering past events. The narrative intertwines elements of technology and personal choices, leading to thrilling and unexpected twists. Richards captivates readers with a complex plot that challenges the boundaries of time and morality, showcasing the impact of seemingly small decisions on the course of history.