Of all of the important Catholic men and women who have been venerated over the last 2,000 years, one of the faith's most popular and influential men also lived one of the most unique lives. Like Roman Emperor Constantine the Great, St. Ignatius of Loyola (1491-1556) found God about as far away from church as possible; it was during military service that he underwent a remarkable conversion.

For the last few decades of the 20th century, the Catholic Church was blessed to have two of its most influential leaders guiding the Church and spreading its faith and message at the same time. Pope John Paul II made history by becoming the first non-Italian pope in several centuries, guiding the church for over 25 years. But while he led the Church, a remarkable woman born Agnes Gonxha Bojaxhiu (1910-1997) became one of the Church's greatest missionaries and humanitarians. She would come to be known to the world as Mother Teresa.

It would be hard to overstate the influence that St. Thomas Aquinas (1225-1274) has had on both the Catholic world and the West as a whole over the last 750 years. Even in secular circles, Aquinas is known as one of the most important medieval philosophers, and in many respects a harbinger of the Renaissance that began to flourish across Europe in the centuries that followed his life. His groundbreaking work, Summa Theologica, remains one of the most influential philosophical texts in history.

Francesco Forgione might be a name lost to history, but over the course of his life, he became one of Catholicism's most well known figures during the 20th century as Padre Pio. It was a remarkable path for a man who was legendarily afflicted by a series of illnesses and most famously bore the stigmata, very noticeably bearing what appeared to be the crucifixion wounds Jesus's hands suffered. Padre Pio was also known for his eccentricities, including unique forms of deep meditation and experiencing visions.

Founder of the largest indigenous Christian church in American history, Joseph Smith published the 584-page Book of Mormon when he was 23 and went on to organize a church, found cities, and attract thousands of followers before his violent death at age 38. Richard Bushman, an esteemed cultural historian and a practicing Mormon, moves beyond the popular stereotype of Smith as a colorful fraud to explore his personality, his relationships with others, and how he received revelations.

He wasn’t always the Great Showman. In fact, Phineas Taylor Barnum grew up in relative poverty with only his wits to help him along. When his father died, the 15-year-old boy entered the working world as a shopkeeper’s assistant. In leaps and bounds, he worked his way from assistant to shop owner, lottery office owner, and, eventually, entertainment promoter. The bulk of his career was focused on his beloved American Museum, where thousands of ticket holders flocked every day to look at the human oddities, stuffed animals, live whale, and American memorabilia.

Abraham Lincoln is the most beloved of all US presidents. He freed the slaves, gave the world some of its most beautiful phrases, and redefined the meaning of America. He did all of this with wisdom, compassion, and wit. Yet, throughout his life, Lincoln fought with God. In his early years in Illinois, he rejected even the existence of God and became the village atheist. In time, this changed but still he wrestled with the truth of the Bible, preachers, doctrines, the will of God, the providence of God, and then, finally, God’s purposes in the Civil War.

Eugene England (1933–2001) — one of the most influential and controversial intellectuals in modern Mormonism — lived in the crossfire between religious tradition and reform. This first serious biography, by leading historian Terryl L. Givens, shimmers with the personal tensions felt deeply by England during the turmoil of the late 20th century.

From his modest headquarters in Crown Heights, Brooklyn, the Rebbe advised some of the world's greatest leaders and shaped matters of state and society. Statesmen and artists as diverse as Ronald Reagan, Robert F. Kennedy, Yitzchak Rabin, Menachem Begin, Elie Wiesel, and Bob Dylan span the spectrum of those who sought his counsel.

Rabbi Menachem Mendel Schneerson (1902-1994), the Lubavitcher Rebbe, took an insular Chasidic group that was almost decimated by the Holocaust and transformed it into one of the most influential and controversial forces in world Jewry. This superbly crafted biography draws on recently uncovered documents and archives of personal correspondence, painting an exceptionally human and charming portrait of a man who was well known but little understood.

Throughout history, countless women have boldly stepped out in faith and courage, leaving their indelible mark on those around them and on the kingdom of God. In lively prose, Michelle DeRusha tells their stories, bringing into focus 50 incredible heroines of the faith. From Catherine of Siena, Teresa of Avila, and Anne Hutchison, to Susanna Wesley, Harriet Tubman, and Corrie ten Boom, women both famous and admirable live again under DeRusha's expert pen.

In 1830, a young seer and sometime treasure hunter named Joseph Smith began organizing adherents into a new religious community that would come to be called the Church of Jesus Christ of Latter-day Saints (and known informally as the Mormons). One of the nascent faith’s early initiates was a twenty-three-year-old Ohio farmer named Parley Pratt, the distant grandfather of Republican presidential candidate Mitt Romney. In The Mormon People, religious historian Matthew Bowman peels back the curtain on more than 180 years of Mormon history and doctrine.

What do Abraham Lincoln, Fyodor Dostoyevsky, Louis Pasteur, Frederick Douglass, Florence Nightingale, and John D. Rockefeller, Sr., all have in common? They all changed the world - and they were all Christians. Now the little-known stories of faith behind 12 influential people of history are available in one inspiring volume. They Were Christians reveals the faith-filled motivations behind some of the most outstanding political, scientific, and humanitarian contributions of history.

Renowned as a printer, scientist, and diplomat, Benjamin Franklin also published more works on religious topics than any other 18th-century American layperson. Born to Boston Puritans, by his teenage years Franklin had abandoned the exclusive Christian faith of his family and embraced deism. But Franklin, as a man of faith, was far more complex than the "thorough deist" who emerges in his autobiography.

Throughout the course of history, civilization has been blessed by strong-minded men and women who have impacted our world in extraordinary ways. Their imprint upon humanity is beyond dispute. And many would contend that they were no less than the result of Divine Providence - a gift of God to the human race. The Mark of a Giant examines the lives and contributions of seven men and women who changed the world: Abraham of Ur, Pericles, the Apostle Paul, Sir Isaac Newton, Marie Curie, Martin Luther King Jr., and Mother Teresa.