This is a charming collection of essays on life and science, by one of the leading mathematicians of our day. Vladimir Igorevich Arnold is renowned for his achievements in mathematics, and nearly as famous for his informal teaching style, and for the clarity and accessibility of his writing. The chapter headings convey Arnold’s humor and restless imagination. A few examples: My first recollections; The combinatorics of Plutarch; The topology of surfaces according to Alexander of Macedon; Catching a pike in Cambridge. Yesterday and Long Ago offers a rare opportunity to appreciate the life and work of one of the world’s outstanding living mathematicians.

"They'd write about her in books she'd never be allowed to read." Rinity Garrick isn't allowed in the Liosi Royal Library, but that hasn't stopped her from sneaking in every chance she gets. It's there she meets Tov, the Librarian whose brown eyes are easier to get lost in than the stories she loves. Things get complicated, however, when Rinity discovers the Librarian is actually the Crown Prince. And his friend, Royal Advisor Gibbs, never seems to be far from the Prince- and seems to have taken an interest in Rinity's best friend. Amya Cole knows better than to set her sights too high- a merchant's son is all she needs to be provided for and still be useful. But the Royal Advisor quickly becomes an unexpected development in those plans. When a mysterious man offers Rinity the opportunity to become the girl the Prince thinks she is, she must decide how far she's willing to go for the answers she wants. Will the girls find their happy ending or bring Liosa down with them as they try to find it? It's Aladdin meets Pride and Prejudice in this romantic comedy about finding the love you deserve in the most unexpected places.

One of PopSugar's Best New YA Novels of 2021 A Buzzfeed Top LGBTQ+ YA Book A Lambda Literary YA Book to Add to Your TBR Pile A Goodreads Pride Month Pick An epic, heartfelt romance about a boy torn between two loves, one in his present ... and one in the past. A story of Black queer history, love, loss, and learning to stay in the moment before it passes you by. Weeks ago, Andre Cobb received a much-needed liver transplant. He's ready for his life to finally begin, until one night, when he passes out and wakes up somewhere totally unexpected...in 1969, where he connects with a magnetic boy named Michael. And then, just as suddenly as he arrived, he slips back to present-day Boston, where the family of his donor is waiting to explain that his new liver came with a side effect—the ability to time travel. And they've tasked their youngest son, Blake, with teaching Andre how to use his unexpected new gift. Andre splits his time bouncing between the past and future. Between Michael and Blake. Michael is everything Andre wishes he could be, and Blake, still reeling from the death of his brother, Andre's donor, keeps him at arm's length despite their obvious attraction to each other. Torn between two boys, one in the past and one in the present, Andre has to figure out where he belongs—and more importantly who he wants to be—before the consequences of jumping in time catch up to him and change his future for good. "Fast-paced, fun, and perfect."—Laurie Halse Anderson, NYT bestselling author of Speak "This book was absolutely incredible."—Creya, Goodreads reviewer "Tears, man. So. Many. Tears."—Marci, Goodreads reviewer "Oh my goodness. This book y'all. I'm a mess."—Netgalley reviewer * A Junior Library Guild Selection! "A stellar novel that today's teens needed yesterday."—Booklist, STARRED review "Charming and captivating."—Phil Stamper, bestselling author of The Gravity of Us "A clever and honestly brilliant novel."—Julian Winters, award-winning author of Running With Lions "A skillful and engrossing time-travel adventure."—Kirkus Reviews "Compelling and memorable...[a] gem of a novel."—The Bulletin of the Center for Children's Books "In his YA debut, Jackson has a great gimmick as well as a likeable protagonist who faces sociocultural realities across time."—Publishers Weekly

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What was school like in the days of old? Can you imagine studying in a tiny one-room schoolhouse, writing out lessons on a chalkboard slate? Discover how school life has changed over time, and what it might be like in the future.