If you have a visual type of memory, use pictures, drawings and graphs to remember information. If this visual material is not a part of what you need to learn, you can easily create it yourself. Make sure you create clear pictures you will be able to understand later when you go over your information again.
One way to improve your memory is by adding meditation to your daily routine. Meditating helps to relax your mind and body, which in turn can make it easier for your brain to recall memories. Set aside a specific time each day when you know you won't be interrupted to close your eyes and meditate for as long as you would like.
To help you to remember something, take that abstract thought or article and place it in a memory palace. A memory palace is some place that is familiar to you. By picturing yourself walking through that space, and then seeing, feeling, or hearing the thing you want to remember, that thought will come easier to you. This is a technique used by professionals regularly.