The Six Secret Forces That Make You Who You Are. Are you an explorer, an artist, a gambler, a scientist, an environmentalist, or a philosopher? In this groundbreaking book, Dr Alan Graham argues that in fact these six different personality traits are present in all of us, to a greater or lesser degree. He provides a number of practical questionnaires & exercises which will help us to understand ourselves. Although we don''t realise it, these six different personality styles are underpinned by our apporach to & understanding mathematics.