There are numerous books written about Oskar Schindler and his story. Some of the most well-known include:
* Schindler's List by Thomas Keneally (This book was the basis for the famous Steven Spielberg film.)
* Schindler's Ark by Thomas Keneally (an earlier version of "Schindler's List")
* The Schindler's List: The Untold Story of Oskar Schindler and the Jews He Saved by David M. Crowe
* Schindler's Children: The True Story of the Children of the Holocaust Saved by Oskar Schindler by Jonathan Hayes
If you're looking for information on a real-life Irena who saved Jews during the Holocaust, you may be thinking of Irena Sendler, a Polish social worker who helped rescue over 2,500 children from the Warsaw Ghetto. There are also several books written about her life and work, such as:
* Irena Sendler: In the Shadow of the Children by Barbara Coloroso
* Irena Sendler: The Woman Who Saved the Children of the Warsaw Ghetto by Jack Fairweather
Please let me know if you're looking for information about a different person or have any other questions.