Although advertising, public relations and think tanks at first seem to have nothing in common, after a closer look certain similarities arise.
The first thing which can be noted is that public relations and the advertising industry, as well as - especially conservative - think tanks like the Heritage Foundation or the Brookings Institute have strong ties to corporate firms. Whereas the connection between the advertising and public relations industry and corporations is based on a consultant - client relation many think tanks heavily rely on corporate funding to pursue their activities. Therefore the interests of corporate firms are to an - in some cases considerable - extent reflected in their activities.
Furthermore the aims of public relations and advertising firms and think tanks are not too different. Their main goal is to sell ideas and values. Albeit it sometimes makes the impression, as if only products, services and understanding (in the case of public relations) are sold, for the greater part the only thing being marketed is (political) ideology.
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some essential definitions in the field of cryptography are:
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"Few false ideas have more firmly gripped the minds of so many intelligent men than the one that, if they just tried, they could invent a cipher that no one could break." (David Kahn)
The variants of encryption systems are endless.
For deciphering there exists always the same game of trial and error (first guessing the encryption method, then the code). A help to do so is pruning. Once, after a more or less long or short period a code/cipher breaks. Monoalphabetic ciphers can be broken easily and of course are no longer used today but for games.
for further information on codes and ciphers etc. see:
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