What are mnemonics?
First letter mnemonics
One common mnemonic for remembering lists consists of an easily remembered acronym, or phrase with an acronym that is associated with the list items. [ The idea lends itself well to memorizing hard-to-break passwords as well.
For example, to remember the "classic" named colours of the rainbow (Red, Orange, Yellow, Green, Blue, Indigo, Violet), it can be easier for some
people to remember the mnemonics "Roy G. Biv" (a made-up name) instead. Or in reverse "VIBGYOR" pronounced "vib-GYOr". Or easier: Richard Of York Gave Battle In Vain.
Another example is an acrostic such as the Zoology mnemonic, used to remember the scientific classification applied in zoology.