Approximation Algorithms and Semidefinite Programming

Grab your colored pencils―it's time for coloring wizardry! Show your house pride with intricate all-new artwork of characters, iconic objects, and magical places from the Harry Potter films, all theme

Grab your colored pencils―it's time for coloring wizardry! Show your house pride with intricate all-new artwork of characters, iconic objects, and magical places from the Harry Potter films, all theme

35.6*25.4cm。超過25個跟哈利波特有關的驚喜，進入哈利波特的魔法世界。Harry Potter: Holiday Magic: The Official Advent Calendar Book takes readers into the Wizarding World and shows iconic moments from the beloved Harry Potter films. With twenty-five days of surprises, unique keepsakes, and collectibles ranging from festive paper ornaments to Harry Potter–inspired recipe cards and more, this advent calendar book is a must-have for Harry Potter fans of all ages. Magical, fun, and unique, Harry Potter: Holiday Magic: The Official Advent Calendar Book is the perfect way to capture the holiday memories from the Wizarding World, and to create your own.DISCOVER MORE THAN 25 HARRY POTTER SURPRISES: Discover a new holiday surprise every day! Buttons, recipe cards, and many other holiday surprises are just some of the memorable gifts waiting behind each of the 25 doors.COUNTDOWN TO CHRISTMAS: With 25 days of removable collectibles themed to the Harry Potter films, countdown to Christmas by opening the door to a surprise eac

Every witch or wizard in the Wizarding World has a unique wand. And as Garrick Ollivander says in Harry Potter and the Sorcerer’s Stone, “The wand chooses the wizard.” Now you can capture the magic of

Color and create haunting 3D paper models and bring the world of Star Wars to life in Star Wars: Make Your Own Ghoul-actic Halloween Pop-Up Book.Explore the dark side of the most haunted of holidays w

Embark on a baking journey through the Star Wars galaxy, and craft scrumptious treats inspired by fan-favorite planets. Get ready to tour the galaxy with this baking cookbook inspired by the snowdrift

A thrillingly detailed tour of Diagon Alley, as seen in the Harry Potter films!Explore Diagon Alley in gorgeous and intricate full-color illustrations. From the stacked shelves of Ollivanders and Weas

Journal, take notes, and get creative with this softcover notebook featuring gorgeous illustrations of creatures from Jim Henson's The Dark Crystal. Jim Henson's puppet masterpiece, The Dark Crystal, is a fantasy classic. Now, fans can enjoy this softcover notebook featuring delightful original art from the book The Dark Crystal Bestiary. This notebook features 240 ruled pages, a ribbon placeholder, and an elastic band.

Write on, wipe off! Get a head start on essential early math skills. Erase mistakes and try again to build confidence and proficiency. Learning early math skills has never been more fun! With Let's Le

Build your own Wizarding World with these paper models! Harry Potter Paper Modelscontains all the materials and instructions needed to make 22 paper models of landmarks, buildings, and other places th

Travel through time and experience the gastronomic history of Hill Valley with this colorful cookbook inspired by the Back to the Future trilogy.Hill Valley may have changed a lot over the years, but

Keep things organized and celebrate your love of HARRY POTTER™ with this delightful collection of three sticky note pads, each featuring a unique and whimsical design from the acclaimed book Exploring

Seal letters, decorate packages, and personalize your stationery with this HARRY POTTERTM: GRYFFINDORTM Wax Seal Set. Inspired by the beloved Harry Potter films, the set comes with a high-quality copp

Seal letters, decorate packages, and personalize your stationery with this HARRY POTTERTM: RAVENCLAWTM Wax Seal Set. Inspired by the beloved Harry Potter films, the set comes with a high-quality coppe

Seal letters, decorate packages, and personalize your stationery with this HARRY POTTERTM: SLYTHERINTM Wax Seal Set. Inspired by the beloved Harry Potter films, the set comes with a high-quality coppe

Seal letters, decorate packages, and personalize your stationery with this HARRY POTTERTM: HUFFLEPUFFTM Wax Seal Set. Inspired by the beloved Harry Potter films, the set comes with a high-quality copp

From your desk to theirs, celebrate your love of HARRY POTTER™ and GRYFFINDOR™ with this beautiful collection of postcard-style note cards in a collectible tin. With gold foil accents throughout, this

From your desk to theirs, celebrate your love of HARRY POTTER™ and HUFFLEPUFF™ with this beautiful collection of postcard-style note cards in a collectible tin. With gold foil accents throughout, this

From your desk to theirs, celebrate your love of HARRY POTTER™ and RAVENCLAW™ with this beautiful collection of postcard-style note cards in a collectible tin. With gold foil accents throughout, this

From your desk to theirs, celebrate your love of HARRY POTTER™ and SLYTHERIN™ with this beautiful collection of postcard-style note cards in a collectible tin. With gold foil accents throughout, this

A must-have guide to Harry Potter’s Platform 9 ¾, packed with dazzling reproductions of props from the Harry Potter films.Every year on September first, young witches and wizards board the Hogwarts Ex

Go behind the scenes with this miniature guide to the spells and charms of the wizarding world, as seen in the beloved Harry Potter films.From Expelliarmus to Expecto Patronum to the three Unforgivabl

Bored with the same old scare-and-scream routine, Pumpkin King Jack Skellington longs to spread the joy of Christmas. But his merry mission puts Santa in jeopardy and creates a nightmare for good little boys and girls everywhere. Now, fans of Tim Burton's iconic film can countdown to Christmas with this pop-up advent calendar.Inside, readers will find a perfectly ghastly pop-up tree. Hidden in compartments beneath it are twenty-five removable and displayable ornaments - from skeletal reindeer to a man-eating wreath-to hang on the tree. Also inside is a 28-page softcover guidebook which contains a retelling of the story and fascinating facts about Halloween Town and its residents.

Delve into the scoundrels and criminals of BATMAN's Rogues Gallery in this miniature art book.No hero in comic history has been more defined by his adversaries than BATMAN. From THE JOKER's warped and

Explore the mysterious and sinister Dark Arts with this collectible tiny art book featuring facts and art from the Harry Potter films.Go behind-the-scenes of the beloved Harry Potter films and learn a

Show your love for the HARRY POTTERTM films with this collectible journal and wand pen set inspired by the Boy Who Lived. Featuring an iconic quote from the character, the journal includes 192 ruled p

Celebrate the magic of the holiday season with this HARRY POTTER™ Christmas Note Card Set. Inspired by Christmas at Hogwarts, this set includes twenty cards—with five unique designs—and twenty lined e

Master the wands of the Harry Potter films and wield your own Elder Wand with this special gift set.Striking and comprehensive, Harry Potter: Wand Collection Gift Set is the perfect gift for Harry Pot

Show your love for the HARRY POTTERTM films with this collectible journal and wand pen set inspired by the “brightest witch of her age,” Hermione Granger. Featuring an iconic quote from the character,

Bright, colorful illustrations and entertaining activities make learning numbers fun with reusable write and wipe books.Learn basic counting skills in a setting that allows kids to wipe away their mis

Play slide and seek to reveal 100 new words in both English and Mandarin Chinese with this larger format board book.With multiple tabs to pull and flaps to lift, countless surprises await young learne

Match pictures and sounds with this charming lift-the-flap book.Engage your senses with fun in this lift-the-flap book with sounds. Toddlers will love the call-and-response text, delightful illustrati

Match pictures and sounds with this charming lift-the-flap book.Engage your senses with fun in this lift-the-flap book with sounds. Toddlers will love the call-and-response text, delightful illustrati

Bring classic tales to life in these stunning 3D images!Enjoy a beloved children’s classic and open up a whole new world of storytelling adventure. Readers can enjoy the story by reading the book from

Bring classic tales to life in these stunning 3D images!Enjoy a beloved children’s classic and open up a whole new world of storytelling adventure. Readers can enjoy the story by reading the book from

Bright, colorful illustrations and entertaining activities make learning the alphabet fun with reusable write and wipe books.Learn basic alphabet skills in a setting that allows kids to wipe away thei

Celebrate your love of the HARRY POTTER™ films with this beautiful journal featuring a stunning graphic of HOGWARTS’™ RAVENCLAW™ house. This journal lies flat when open and includes 192 ruled pages an

Celebrate your love of the HARRY POTTER™ films with this beautiful journal featuring a stunning graphic of HOGWARTS’™ SLYTHERIN™ house. This journal lies flat when open and includes 192 ruled pages an

Celebrate your love of the HARRY POTTER™ films with this beautiful journal featuring a stunning graphic of HOGWARTS’™ HUFFLEPUFF™ house. This journal lies flat when open and includes 192 ruled pages a

Celebrate your love of the HARRY POTTER™ films with this beautiful pocket journal featuring a stunning graphic of HOGWARTS’™ GRYFFINDOR™ house. This journal lies flat when open and includes 192 ruled