In ciphers, one character represents another.
In codes, one character or symbol can represent a group of letters or words, so all emojis are codes, for example.
This is a simple substitution cipher, where I have randomly chosen one letter to represent another.
ZW VEPONHN MDNVZBNYY:
YZVDZ JPNDN SWG VDN.
GYN JPVZ SWG PVHN.
TW JPVZ SWG EVB.
Can you tell me which great man said it?
Tip: The most commonly used letters in the English language are:
The most commonly used words in written English (according to an analysis of the Oxford English Corpus, over 2 billion words) are:
As with all averages, these apply best to large samples, but they often help us to crack ciphers and codes.
There are many other types of substitution ciphers and cipher-based codes. Why not try them out by clicking on the links below?