Book excerpt: "A ... memoir of love and faith from Hannah Brencher ... who has dedicated her life to showing total strangers that they are not alone in the world. Fresh out of college, Hannah Brencher moved to New York, expecting her life to look like a scene from Sex and the City. Instead, she found a city full of people who knew where they were going and what they were doing ... Lonely and depressed, she noticed a woman who looked like she felt the same way on the subway. Hannah did something strange--she wrote the woman a letter. She folded it, scribbled 'If you find this letter, it's for you...' on the front and left it behind. When she realized that it made her feel better, she started writing and leaving love notes all over the city ... [eventually sending 400 handwritten letters as a result of an Internet post and starting the website The World Needs More Love Letters]"--