After film critic Gene Siskel asked her, "What do you know for sure?" Oprah Winfrey began writing the "What I Know for Sure" column in O, The Oprah Magazine. Saying that the question offered her a way to take "stock of her life", Oprah has penned one column a month over the last 14 years.

Based on the NPR series of the same name, This I Believe features 80 Americans—from the famous to the unknown—completing the thought that begins with the book's title. The pieces that make up the program compel listeners to re-think not only what and how they have arrived at their own personal beliefs, but also the extent to which they share them with others.

With Quiet, Susan Cain urged our society to cultivate space for the undervalued, indispensable introverts among us, thereby revealing an un­tapped power hidden in plain sight. Now she em­ploys the same mix of research, storytelling, and memoir to explore why we experience sorrow and longing, and how embracing the bittersweetness at the heart of life is the true path to creativity, con­nection, and transcendence.

Looking to some of the world's greatest thinkers and inspiring leaders, Brooks explores how, through internal struggle and a sense of their own limitations, they have built a strong inner character. Labor activist Frances Perkins understood the need to suppress parts of herself so that she could be an instrument in a larger cause. Dwight Eisenhower organized his life not around impulsive self-expression but considered self-restraint.

How did a New York-born, Jewish, former-atheist novelist and screenwriter - a winner of multiple Edgar Awards, whose books became films with Clint Eastwood and Michael Douglas - find himself at the age of 50 being baptized and confessing Jesus as Lord? That's a tale worth telling.

In the more than 25 years since she co-founded Omega Institute - now the world's largest center for spiritual retreat and personal growth - Elizabeth Lesser has been an intimate witness to the ways in which people weather change and transition. In a beautifully crafted blend of moving stories, humorous insights, practical guidance, and personal memoir, she offers tools to help us make the choice we all face in times of challenge: Will we be broken down and defeated, or broken open and transformed?

Women growing older contend with ageism, misogyny and loss. Yet as Mary Pipher shows, most older women are deeply happy and filled with gratitude for the gifts of life. Their struggles help them grow into the authentic, empathetic and wise people they have always wanted to be. In Women Rowing North, Pipher offers a timely examination of the cultural and developmental issues women face as they age.

Serene Jones' epic work of raw truth, fierce love, and spiritual teaching is as muscular as the fractured soul of this century demands. From her abiding Oklahoma roots to her historic leadership of a legendary New York seminary, her story illuminates the deep fault lines of this age - and points beyond them.

To know your true calling - your dharma, as the yogis say - is perhaps the greatest desire within each of us. And yet, few can say we know our purpose with absolute certainty. Fortunately, there is a time-tested guide - an ancient map - for discovering and fulfilling your unique calling. In The Great Work of Your Life, Stephen Cope walks you through each step of the journey.

Every one of us sooner or later walks through hell. The hell of being hurt, the hell of hurting another. The hell of cancer, the hell of a reluctant, thunking shovel full of earth upon the casket of someone we deeply loved, the hell of betrayal, the hell of betraying, the hell of divorce, the hell of a kid in trouble...the hell of knowing that this year, like any year, may be our last. We all walk through hell. The point is not to come out empty-handed.... There is real and profound power in the suffering we endure if we transform that suffering into a more authentic, meaningful life.

Joy Davidman is known, if she is known at all, as the wife of C. S. Lewis. Their marriage was immortalized in the film Shadowlands and Lewis' memoir, A Grief Observed. Now, through extraordinary new documents as well as years of research and interviews, Abigail Santamaria brings Joy Davidman Gresham Lewis to your ears in the fullness and depth she deserves. A poet and radical, Davidman was a frequent contributor to the communist vehicle New Masses and an active member of New York literary circles in the 1930s and '40s.

Set against the lush backdrop of Crosswicks, her family's farmhouse in rural Connecticut, this deeply personal memoir details Madeleine L'Engle's journey to find balance between her career as a Newbery Medal-winning author and her responsibilities as a wife, mother, teacher, and Christian.

E. E. Cummings' radical experimentation with form, punctuation, spelling, and syntax resulted in his creation of a new, idiosyncratic means of poetic expression. And while there was critical disagreement about his work (Edmund Wilson called it "hideous", while Malcolm Cowley called him "unsurpassed in his field"), at the time of his death in 1962, at age 67, he was, after Robert Frost, the most widely read poet in the United States. Now, in this new biography, Susan Cheever traces the development of the poet and his work.

The child of an Irish man and an Irish American woman who split up before he was born, Michael Brendan Dougherty grew up with an acute sense of absence. He was raised in New Jersey by his hardworking single mother, who gave him a passion for Ireland, the land of her roots and the home of Michael's father. She put him to bed using little phrases in the Irish language, sang traditional songs, and filled their home with a romantic vision of a homeland over the horizon.

Blending memoir and polemic with close readings of her favorite novels, she describes the unexpected journey that led her to become an American citizen after first dreaming of America as a young girl in Tehran and coming to know the country through its fiction. She urges us to rediscover the America of The Wonderful Wizard of Oz and Adventures of Huckleberry Finn and challenges us to be truer to the words and spirit of the Founding Fathers, who understood that their democratic experiment would never thrive or survive unless they could foster a democratic imagination.