Draw pictures and diagrams

Pictures are located in the same part of the brain as the long term memory. When you're studying, turn your key concepts into pictures. The first picture you draw or think of is usually the most memorable. The sillier the picture, the better it is for remembering as it stands out.
Colourful pictures are often easier to remember. Your visuals can be imagined, drawn or made. If you can't draw a picture such as with dates or words in a foreign language, write them large and in colour. Your brain will process this as a picture not a word.
Remember to put key information up high so your fast visual recall memory processes it.