It generally involves anagrams or other wordplay treatments such as addition, subtraction, omission, or substitution of a letter, and is sometimes arranged in the form of a verse giving hints to the word.
The term logogriph is also used for the puzzle type in which a pair of anagrams must be deduced from synonyms[1] (e.g. YELLOW FISH would lead to the answer AMBER BREAM).
The following example of a logogriph created by Lord Macaulay refers to the word COD: In explanation, cut off COD’s head and it becomes OD (i.e. odd, or singular); cut off its tail, and it becomes CO (company, plurality); cut off both to leave O (nothing, emptiness); the head of the word is the letter C, which sounds like SEA; the tail is D, which sounds like the River Dee, and COD itself may play in the depths of both.
For example, one logogriph appeared in The Masquerade on the word SPEAR, which includes the letters of APE, SPAR, REAP, ASP and so forth.
Orhan Pamuk’s The Black Book refers to the use of logogriphs as a means of evading press censorship.