This mnemonics branch contains memorization techniques that are so common that many people do not even notice them -- the techniques taught in schools and kindergartens, many of which are recommended by teachers and professors. During a lifetime, people normally develop their own method for proper memorization. Mnemonics is quite old; many methods and techniques are literally embedded in us at a very early age.
If you look at your computer screen, you will see many visual images. Thanks to the visualization of information, even a child who cannot read knows that he should click on the floppy disk icon in order to record to a floppy disk. Road signs are also good examples of mnemonic techniques integration into our daily lives. A person is unable to comprehend textual messages at a fast speed. Road signs (that are only symbols representing laws) are quickly perceived. A simple alphabet is also a mnemonic technique. In schools, young students learn to link sounds to their correlating symbols. Letters are encoded into combination of dots and dashes (Morse code) is yet another example of mnemonics.
The human brain cannot memorize numerical data. This is why everybody tries to invent their own techniques for memorizing phone numbers. However, these techniques are mainly very similar. Foreign words and terminology are often remembered by consonance. Oftentimes, we subconsciously use a method of connecting the information to other data or find a pattern in new elements.
The number of techniques in popular mnemonics is limited, though generally very similar. It appears this may be due to the fact that we were all taught to use them by our parents, in schools, and even in kindergarten. The techniques utilized are not usually very clear; their efficiency is very low; they do not have a scientific basis, nor do they comprise a system. Still, they do aid memorization. Every person can remember a number of historical dates, names, addresses, and phone numbers. Such things are remembered by using the popular mnemonic techniques.