Former National Security Agency contractor Edward Snowden, who leaked a series of classified documents in 2013, will release his memoir worldwide on September 17.

The big picture: Snowden is currently living in Moscow, avoiding U.S. charges that could send him to prison. While U.S. officials have harshly condemned Snowden's actions, some have lauded him for bringing to light previously unknown NSA practices and increasing government accountability.

What to watch: A Facebook announcement for the book noted the memoir, titled "Permanent Record," will be printed globally by Macmillan Publishers this fall by way of Metropolitan Books. According to a statement provided to AP, the book will be released in over 20 countries.

Go deeper: Tulsi Gabbard would drop charges against Assange, Snowden if elected