You Be the Jury: Best of (Read 180: Stage B: Level4) [Paperback]

You Be the Jury: Best of (Read 180: Stage B: Level4)

Marvin Miller

scholastic

From Wikipedia: In cryptography, a code is a method used to transform a message into an obscured form so it cannot be understood. Special information or a key is required to read the original message. The usual method is to use a codebook with a list of common phrases or words matched with a codeword. Encoded messages are sometimes termed codetext, while the original message is usually referred to as plaintext. ~ Terms like code and in code are often used to refer to any form of encryption. However, there is an important distinction between codes and ciphers in technical work; it is, essentially, the scope of the transformation involved. Codes operate at the level of meaning; that is, words or phrases are converted into something else. Ciphers work at the level of individual letters, or small groups of letters, or even, in modern ciphers, with individual bits. While a code might transform "change" into "CVGDK" or "cocktail lounge", a cipher transforms elements below the semantic level, i.e., below the level of meaning. The "a" in "attack" might be converted to "Q", the first "t" to "f", the second "t" to "3", and so on. Ciphers are more convenient than codes in some situations, there being no need for a codebook, with its inherently limited number of valid messages, and the possibility of fast automatic operation on computers. ~ Codes were long believed to be more secure than ciphers, since (if the compiler of the codebook did a good job) there is no pattern of transformation which can be discovered, whereas ciphers use a consistent transformation, which can potentially be identified and reversed (except in the case of the one-time pad).

How to Write and Decode Top-Secret Messages (Codemaster, No. 1)

Children's Books

Scholastic. Inc.

Codemaster, 2: Top Secret

SCHOLASTIC INC. @

Great Book On Coutroom Collection from a Jury

You Be the Jury: Courtroom Collection

You Be The Detective

T*A*C*K is a network of kids. We solve mysteries, everyday problems, and matters of life and death. Be a member of T*A*C*K. Help solve seven cases. The Comic Book Caper T*A*C*K into Danger Halloween Shadows and four more!

T*A*C*K into Danger

NANCY K. ROBINSON

Mystery, Thriller & Suspense

Scholastic Book Services

Toria, Abby, Chuck, and Will, code named K, solve a code, save a dog, deal with a bully, overcome a navigational problem and settle an argument

T A C K into Danger (T*A*C*K Team)

Nancy Robinson

Scholastic Paperbacks

You Be the Jury Courtroom IV

Who is caught red-handed in "The Case of the Circus Footprints?" Who spooked Mr. Bramble in "The Case of the Haunted House?" Readers solve these crimes and more by examining the evidence provided in seven challenging cases and putting together the jigsaw puzzle at the end of each case.

You Be the Detective: No. 1 (Puzzle Books)

Action & Adventure

Scholastic/Hippo

FOR USE IN SCHOOLS AND LIBRARIES ONLY. The reader is provided evidence for ten courtroom cases and must decide whether each defendant is guilty or innocent.

You Be the Jury: No. 3 (Hippo Puzzles)

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Books by Marvin Miller