Janeczko, Paul B. <br/><br/>
Top secret :  a handbook of codes, ciphers, and secret writing  
Paul B. Janeczko ; illustrated by Jenna LaReau. 
 - 1st ed. 
 - Cambridge, Mass. :  Candlewick Press,  2004. 
 - 136 p. :  ill. ;  24 cm. 
<br/><br/>Nonsecret codes -- book code -- dictionary code -- Codetalking -- Pig Latin -- Turkish Irish -- Caesar cipher -- St. Cyr slide -- Keyboard cipher -- Morse code -- Semaphore -- Pigpen cipher -- Rosicrucian cipher -- Date shift cipher -- Greek square cipher -- Greek skytale -- Rail fence cipher -- Route transposition cipher -- Codebreaking -- Early concealment techniques -- Null cipher -- Cardano grille -- Word grille -- Space code -- Playing card code -- Dot cipher -- Line cipher -- Zigzag cipher -- Invisible inks. 
<br/><br/> A handbook for the budding cryptographer including codes and ciphers, invisible inks, concealment techniques, spy stories and some history. 
<br/><br/>
<br/><br/><label>ISBN: </label>0763609714 (alk. paper) 
<br/><br/><label>Source: </label> Junior Library Guild  http://www.juniorlibraryguild.com 
<br/><br/><label>LCCN: </label>2002034758 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cryptography--Juvenile literature.<br/>Ciphers--Juvenile literature.
<br/><br/><label>LC Class. No.: </label>Z103.3  / .J357 2004 
<br/><br/><label>Dewey Class. No.: </label>652/.8