I first became aware of mnemonics (/nəˈmɒnɪk/ - the first "m" is silent) many years ago while still at high school, when our teacher told us to use this device to retain content materials for examination purposes.  Regrettably, she did not elaborate or demonstrate further, instead exhorting us to 'go look it up in the library and practice', so relegating it to the realms of non-essential, extra and burdonsome work effort in my young mind - of course, the end-result being exactly what I had tried to avoid, condemning myself instead to years of 'retention by rote and repetition'.  It was only many years later that I first saw the practical implementation of mnemonics use and was so impressed that I resolved there and then to consciously use it whenever and wherever I could. 

The context was a workshop comprised of 30 disparate individuals from diverse functional areas of our employer (a multi-sectoral, multi-national corporate), being led by a visiting professor from a leading business school.  At the commencement of the session he asked us to go around the lecture room, in turn stating our first and last names, our job title and where we worked geographically.  This took about 10 minutes at most, at the end of which he addressed each one of us personally and divided us into specific groups of his choosing, repeating our first names without error and stating the reasons for his group choice (persons from the same geographical area and the same job function should not be in the same group).  We were all so impressed that we spontaneously burst into applause, to which he succinctly responded, 'The Power of Mnemonics, people!"  Suffice to say that the recollection and insight was blinding, and perseveres to this day.

So ... why publish this?  Very simply, it aligns with the learning mechanisms offered by ETUT, coupled to which I have found an excellent site published by Pjotr Wiese, which I would urge you to visit at https://www.mnemonic-device.com/.

ETUT - 'each one, teach one'