American Cryptogram Association

American Cryptogram Association

The American Cryptogram Association, or the ACA, is a non-profit organization devoted to cryptograms, ciphers and cryptanalysis.  Membership includes a subscription to The Cryptogram magazine (6 issues a year) as well as access to the ACA forums and membership social activities.  The ACA also provides an online cryptogram solving game on their site.  The solving mechanism is fairly straightforward and easy to use.

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