Martin Gardner's Mathematical Games columns in Scientific American inspired and entertained several generations of mathematicians and scientists. Gardner in his crystal-clear prose illuminated corners of mathematics, especially recreational mathematics, that most people had no idea existed. His playful spirit and inquisitive nature invite the reader into an exploration of beautiful mathematical ideas along with him. These columns were both a revelation and a gift when he wrote them; no one--before Gardner--had written about mathematics like this. They continue to be a marvel. This volume, first published in 1969, contains columns published in the magazine from 1961-1963. This is the 1991 edition and it contains an afterword and extended bibliography added by Gardner at that time.

When a scandal surrounding her father upsets all her carefully laid plans for her future, Andie must learn to accept a new relationship with her father and to embrace a little chaos in her life.

High adventure from a master storyteller about one boy’s attempt to fend for himself among cruel orphan masters, corrupt magistrates, and conniving thieves. In the seaside town of Melcombe Regis, England, 1724, Oliver Cromwell Pitts wakes to find his father missing and his house flooded by a recent storm. He’s alone in his ruined home with no money and no food. Oliver’s father has left behind a barely legible waterlogged note: he’s gone to London, where Oliver’s sister, Charity, is in trouble. Exploring damage to the town in the storm’s aftermath, Oliver discovers a shipwreck on the beach. Removing anything from a wrecked ship is a hanging offense, but Oliver finds money that could save him, and he can’t resist the temptation to take it. When his crime is discovered, Oliver flees, following the trail of his father and sister. The journey is full of thieves, adventurers, and treachery--and London might be the most dangerous place of all. In the tradition of his Newbery Honor book The True Confessions of Charlotte Doyle, Avi mixes high adventure and short, page-turning chapters with a vivid historical setting featuring a cast of highwaymen, pickpockets, and villainous criminal masterminds. A Kirkus Reviews Best Book of 2017

**From the Sunday Times Bestselling Author** Life-affirming - THE TELEGRAPH Wonderful - INDEPENDENT She made it her mission to learn how to be default happy rather than default disgruntled - RADIO 4 - WOMAN'S HOUR Take a leaf out of Gray's book and be kinder to yourself by appreciating life just as it is - IRISH TIMES This book came to me in an hour of need - during lockdown when I had to focus on the positive, appreciate simple things, not lose my shit, and value each day. It was a pure joy for me and held my hand - SADIE FROST Interesting and joyful. Lights a path that could help us to build resilience against society's urging to compare life milestones with peers - LANCET PSYCHIATRY Underwhelmed by your ordinary existence? Disillusioned with your middlin' wage, average body, 'bijou' living situation and imperfect loved ones? Welcome to the club. There are billions of us. The 'default disenchanted'. But, it's not us being brats. Two deeply inconvenient psychological phenomenons conspire against our satisfaction. We have negatively-biased brains, which zoom like doom-drones in on what's wrong with our day, rather than what's right. (Back in the mists of time, this negative bias saved our skins, but now it just makes us anxious). Also, something called the 'hedonic treadmill' means we eternally quest for better, faster, more, like someone stuck on a dystopian, never-ending treadmill. Thankfully, there are scientifically-proven ways in which we can train our brains to be more positive-seeking. And to take a rest from this tireless pursuit. Whew. Catherine Gray knits together illuminating science and hilarious storytelling, unveiling captivating research showing that big bucks don't mean big happiness, extraordinary experiences have a 'comedown' and budget weddings predict a lower chance of divorce. She reminds us what an average body actually is, reveals that exercising for weight loss means we do less exercise, and explores the modern tendency to not just try to keep up with the Murphys, but keep up with the Mega-Murphies (see: the social media elite). Come on in to this soulful and life-affirming read, to discover why an ordinary life may well be the most satisfying one of all.

A princess is missing and a peace treaty is on the verge of collapse in this new Veronica Speedwell adventure from the New York Times bestselling and Edgar Award-nominated author Deanna Raybourn. January 1889. As the newest member of the Curiosity Club--an elite society of brilliant, intrepid women--Veronica Speedwell is excited to put her many skills to good use. As she assembles a memorial exhibition for pioneering mountain climber Alice Baker-Greene, Veronica discovers evidence that the recent death was not a tragic climbing accident but murder. Veronica and her natural historian beau, Stoker, tell the patron of the exhibit, Princess Gisela of Alpenwald, of their findings. With Europe on the verge of war, Gisela's chancellor, Count von Rechstein, does not want to make waves--and before Veronica and Stoker can figure out their next move, the princess disappears. Having noted Veronica's resemblance to the princess, von Rechstein begs her to pose as Gisela for the sake of the peace treaty that brought the princess to England. Veronica reluctantly agrees to the scheme. She and Stoker must work together to keep the treaty intact while navigating unwelcome advances, assassination attempts, and Veronica's own family--the royalty who has never claimed her.