Explains how to write and decipher space codes, hidden word codes, and alphabet codes and gives formulas for invisible ink. Includes suggestions for delivering coded messages.
"synopsis" may belong to another edition of this title.
Seller: Better World Books: West, Reno, NV, U.S.A.
Condition: Good. First Edition. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good. Seller Inventory # 8034899-6
Seller: Better World Books, Mishawaka, IN, U.S.A.
Condition: Good. First Edition. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good. Seller Inventory # 8034899-6
Seller: BooksRun, Philadelphia, PA, U.S.A.
Paperback. Condition: Fair. First Edition. The item might be beaten up but readable. May contain markings or highlighting, as well as stains, bent corners, or any other major defect, but the text is not obscured in any way. Seller Inventory # 0590026062-7-1
Seller: Polly's Books, Grand Rapids, MI, U.S.A.
Paperback. Condition: Good. 4th Printing, 1971. Softcovers have same cover art. A good softcover copy with a tight and square binding. Text and illustrations are clean but text has yellowed. Softcovers are good but are mildly scuffed. Careful packaging and fast shipping. We recommend EXPEDITED MAIL for even faster delivery. Shipped in 100% recyclable material. Seller Inventory # 40426
Seller: The Book Beast, Mountain Grove, MO, U.S.A.
Hardcover. Condition: Good. 1st Edition. Ex-Library. Covers and corners show where from use. Inside is very nice and enjoyable. Seller Inventory # 005055
Seller: ThriftBooks-Dallas, Dallas, TX, U.S.A.
Paperback. Condition: Fair. No Jacket. Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G0590026062I5N00
Seller: BennettBooksLtd, Los Angeles, CA, U.S.A.
paperback. Condition: New. In shrink wrap. Looks like an interesting title! Seller Inventory # Q-0590026062
Seller: GoldBooks, Denver, CO, U.S.A.
Paperback. Condition: new. New Copy. Customer Service Guaranteed. Seller Inventory # 73E53_66_0590026062