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What's the big secret? : talking about sex with girls and boys
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It's so amazing! A book about eggs, sperm, birth, babies, and families
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Amazing you : getting smart about your private parts
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War against the weak : eugenics and America's campaign to create a master race
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What's in there? : all about you before you were born
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What makes a baby
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Where do babies come from? : our first talk about birth
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Sex is a funny word
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The guarded gate : bigotry, eugenics, and the law that kept two generations of Jews, Italians, and other European immigrants out of America
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The Usborne flip-flap body book
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Birthright : A War Story
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It's so amazing! : a book about eggs, sperm, birth, babies, gender, and families
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Count down : how our modern world is threatening sperm counts, altering male and female reproductive development, and imperiling the future of the human race
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Making a baby
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Womb : the inside story of where we all began
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Queer conception : the complete fertility guide for queer and trans parents-to-be
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The big freeze : a reporter's personal journey into the world of egg freezing and the quest to control our fertility
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Climate anxiety and the kid question : deciding whether to have children in an uncertain future
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Growing up great! : the ultimate puberty book for boys
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It's perfectly normal : changing bodies, growing up, sex, gender, and sexual health
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Roads to family : all the ways we come to be
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Sex is a spectrum : the biological limits of the binary
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The making of Pennsylvania; an analysis of the elements of the population and the formative influences that created one of the greatest of the American States
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If America were a village : a book about the people of the United States
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Sixth census of the United States : Pennsylvania, 1840
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Tenth census of the United States : Lancaster County, Pa., 1880
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Third census of the United States : Pennsylvania, 1810
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Second census of the United States : Pennsylvania, 1800
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Fourth census of the United States : Pennsylvania, 1820
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Fifth census of the United States : Pennsylvania, 1830
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Thirteenth census of the United States taken in the year 1910
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Seventh census of the United States : Blair County, Pa., 1850
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28 weeks later
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Our patchwork nation : the surprising truth about the "real" America
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A century of population growth : from the first census of the United States to the twelfth, 1790-1900
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Human footprint : everything you will eat, use, wear, buy, and throw out in your lifetime
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If the world were a village : a book about the world's people
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I am legend
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Eighth census of the United States : Berks County, Pa., 1860
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Snyder township federal census 1850 : from microfilmed records
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Immigrants to the middle colonies : a consolidation of ship passenger lists and associated data from the New York genealogical and biographical record
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I am legend
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If ... : a mind-bending new way of looking at big ideas and numbers
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Bernie
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Population infographics
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Empty planet : the shock of global population decline
