What is the author's style in Schindler's List by Thomas Keneally?

Schindler's List is a "documentary novel," a novel that recreates events that actually took place in real life. The events described in the book are based on interviews with fifty Schindler survivors and enriched by extensive research as well as by the author's visits to Kraków, Plaszow, and Auschwitz-Birkenau.