Using mnemonics, people develop devices (mnemonic tricks), such as rhymes, formulas, sketches, or special words or sentences. The principle of mnemonics is to associate hard to memorise information with simpler representation.
We choose a specific topic, which has particularly difficult to remember content. We choose an appropriate mnemonic device (system/method). The terms to be remembered are expressed in simpler terms, according to the selected mnemonic device. They are repeated until all terms are properly learned by heart.
Memorising with the help of a walk:
Write the information to be learned on a notepad.
Imagine walking (a specific route) and stopping at certain locations (for example, on a street, at a bus stop, by a lake, by a distinctive tree) and by each memorise one of the items from the notepad.
Note in the notepad which content is associated with which place.
Keep repeating the walk on that route until you have mastered the subject.
During an examination, you just need to imagine going on that walk to recall with relative ease what was learned.