There is also an excellent book about Erdos for adults: The Man Who Loved Only Numbers: The Story of Paul Erdos and the Search for Mathematical Truth https://

There is also an excellent book about Erdos for adults: The Man Who Loved Only Numbers: The Story of Paul Erdos and the Search for Mathematical Truth https://www.amazon.com/Man-Who-Loved-Only-Numbers/dp/0786884061/ref=asc_df_0786884061/ https://www.amazon.com/Man-Who-Loved-Only-Numbers/dp/0786884...