Still, even having created images for each group of three cards, it is difficult to keep them in order.
This is done using the loci method, or what some call a “Memory Palace”-- a term
created by Frances Yates in his 1966 book ‘The Art of Memory’ --which is a simple yet effective method devised by the ancient Greeks.
They practised transforming lists of words into vivid set of objects, which they arranged in their imagination around familiar space
Then they learned to link these Images back to their original meaning.