The effects of power may be obvious—high office, laws, riches, regulations, even life and death—but power itself is only an idea, one that journalists have long struggled to describe. For a century, Pulitzer-winning works—some of the best journalism ever produced—have readily confronted the powerful, and constantly held power to account. As the Pulitzer Prize celebrates its centennial year, Nieman Reports takes a look at a century of Pulitzer journalism speaking truth to power, setting the tone for another 100 years of remarkable work. Our Summer 2016 issue also highlights forgotten Prize-winning works worth remembering, an examination of competing news outfits teaming up to do watchdog stories—including many that have won the Pulitzer, and the business reporting at the core of much Pulitzer journalism.