1, by different authors: the author of Putin's biography is American journalist Steven Lee Meyer, while the author of Putin's biography is Russian writer Oleg Luliyev.
2. Different contents: The Biography of Putin mainly describes Putin's life, political experience and influence on Russia. The book covers Putin's family background, education, occupation, political ideas and foreign policy. The Biography of Putin is a novel, which tells about Putin's growing experience and political career in the form of a novel, and discusses the political and social changes in Russia.