What is the author's style in In the Shadow of Man by Jane Goodall?

In the Shadow of Man is written in the first-person from the perspective of the famous scientist, primatologist and environmental activist, Jane Goodall. Goodall was born in London in 1934 and loved chimpanzees from an early age; her desire to study animals led to her meeting Dr. Louis Leakey, who hired her as his research assistant.