"Codes can carry big secrets! Throughout history, lots of good guys and lots of bad guys have used codes to keep their messages under wraps. This fun and flippable nonfiction features stories of hidden treasures, war-time maneuverings, and contemporary hacking as well as explaining the mechanics behind the codes in accessible and kid friendly forms. Sidebars call out activities that invite the reader to try their own hand at cracking and crafting their own secret messages. This is the launch of an exciting new series that invites readers into a STEM topic through compelling historical anecdotes, scientific backup, and DIY projects."--
"synopsis" may belong to another edition of this title.
Ella writes fiction and nonfiction books for young readers. She is always asking questions and trying to learn new things. The books she writes are for kids who are just as curious as she is.
In addition to writing books, Ella is a cybersecurity warrior interfacing with the U.S. federal government on strategic technology initiatives. She has a bachelor's and master's degree in engineering from Columbia University.
When she's not working, writing, or training to run a marathon, she volunteers on outreach initiatives to promote women in science and improve science literacy.
Ella lives on Long Island, New York with her husband and three sons. Her favorite color is pink, but there is rarely anything pink in her house.
Visit Ella on her website, ellasbooks.com. Follow her on Twitter @ellaschwartz and Facebook facebook.com/EllaSchwartzAuthor/---
Lily Williams grew up in Northern California, where she graduated with high distinction from California College of the Arts with a BFA in animation. Her books for children include If Sharks Disappeared and If Polar Bears Disappeared.
Williams seeks to inspire change in the world, engage audiences, and educate all ages in her practice of visual development, illustration, and animation. Her work can be seen in film, print, and classrooms around the world, and has been used to get legislation passed in the United States Senate.
"A broad and lucid survey of cryptographic strategies. These range fromsteganography and substitution ciphers to second factor authenticationand other recent trends in cybersecurity. She also provides plenty ofvariously coded examples for readers to decipher as practice, capped by a final challenge to go back and find the clues to a secret message thathave been distributed throughout. Her detailed description of how theGerman Enigma machine worked (and was hacked by the Bletchley Park group in World War II) is indeed "fascinating," as are the close analyses ofstill-unsolved messages such as the modern Kryptos inscription outside CIA headquarters." - Kirkus Reviews
"This perennially popular topic leads kids into tales of war and espionage, and to better ways of passing messages in class. Here Schwartz discusses the frequently traveled paths of the Caesar code,Masonic symbols, and the Enigma machine, with lots of opportunity to try one's hand at en- and decryption, and she also explains how encryption is vital to internet security and touches all forms of online and cellular communication. Necessary math concepts used to strengthen passwords are smoothly addressed (and some teachers might be interested in Schwartz's discussion of the practical use of prime numbers), along with such delectable tidbits as an illegal prime number that can unlock DVD encryption. Cartoon illustrations keep things cheery, as does Schwartz's overall optimism concerning cybersecurity and the white hat hacking. For middle-graders interested in the interplay of encryption and their personal security." - Bulletin of the Center for Children's Books
"About this title" may belong to another edition of this title.
FREE shipping within U.S.A.
Destination, rates & speedsSeller: SecondSale, Montgomery, IL, U.S.A.
Condition: Very Good. Williams, Lily (illustrator). Item in very good condition! Textbooks may not include supplemental items i.e. CDs, access codes etc. Seller Inventory # 00084559677
Quantity: 2 available
Seller: SecondSale, Montgomery, IL, U.S.A.
Condition: Acceptable. Williams, Lily (illustrator). Item in acceptable condition! Textbooks may not include supplemental items i.e. CDs, access codes etc. Seller Inventory # 00079617690
Quantity: 1 available
Seller: Goodwill of the Olympics and Rainier Region, Tacoma, WA, U.S.A.
Condition: Acceptable. Williams, Lily (illustrator). An acceptable and readable copy. All pages are intact, and the spine and cover are also intact. This item may have light highlighting, writing or underlining through out the book, curled corners, missing dust jacket and or stickers. Seller Inventory # 467IJT006RI0
Quantity: 1 available
Seller: Goodwill of Colorado, COLORADO SPRINGS, CO, U.S.A.
Condition: Good. Williams, Lily (illustrator). This item is in overall good condition. Covers and dust jackets are intact but may have minor wear including slight curls or bends to corners as well as cosmetic blemishes including stickers. Pages are intact but may have minor highlighting/ writing. Binding is intact; however, spine may have slight wear overall. Digital codes may not be included and have not been tested to be redeemable and/or active. Minor shelf wear overall. Please note that all items are donated goods and are in used condition. Orders shipped Monday through Friday! Your purchase helps put people to work and learn life skills to reach their full potential. Orders shipped Monday through Friday. Your purchase helps put people to work and learn life skills to reach their full potential. Thank you! Seller Inventory # 466SUS0033DP
Quantity: 1 available
Seller: Goodwill Books, Hillsboro, OR, U.S.A.
Condition: Good. Williams, Lily (illustrator). Signs of wear and consistent use. Seller Inventory # 3IIK100067KY_ns
Quantity: 1 available
Seller: Better World Books, Mishawaka, IN, U.S.A.
Condition: Good. Williams, Lily (illustrator). Former library book; may include library markings. Used book that is in clean, average condition without any missing pages. Seller Inventory # 38421006-6
Quantity: 1 available
Seller: Better World Books, Mishawaka, IN, U.S.A.
Condition: Very Good. Williams, Lily (illustrator). Former library book; may include library markings. Used book that is in excellent condition. May show signs of wear or have minor defects. Seller Inventory # 17298212-6
Quantity: 5 available
Seller: Half Price Books Inc., Dallas, TX, U.S.A.
Hardcover. Condition: Very Good. Williams, Lily (illustrator). Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority! Seller Inventory # S_428321412
Quantity: 1 available
Seller: tLighthouse Books, Onekama, MI, U.S.A.
Condition: good. Williams, Lily (illustrator). A copy that has been read, but remains in clean condition. All pages are intact, and the cover is intact. The spine and cover may show signs of wear. Pages can include limited notes and highlighting, and the copy can include "From the library of" labels or previous owner inscriptions. 100% GUARANTEE! Shipped with delivery confirmation. If you're not satisfied with purchase please return item for full refund. Seller Inventory # 58BW5300040H_ns
Quantity: 1 available
Seller: True Oak Books, Highland, NY, U.S.A.
Hardcover. Condition: Very Good. Dust Jacket Condition: Very Good-. Williams, Lily (illustrator). 1st Edition (Unstated); First Printing. 8.46 X 19.56 X 10.38 millimeters; 118 pages; Sticker on DJ barcode. Very Good overall condition otherwise. No other noteworthy defects. No writing.; - We offer free returns for any reason and respond promptly to all inquiries. Your order will be packaged with care and ship on the same or next business day. Buy with confidence. Seller Inventory # TOB218-33789-OS-0.84
Quantity: 1 available