The order of movements, the English text and the diagram come from the book. Korean names with no mark were already in the site's technique list; those marked book come from the Encyclopedia listing; those marked ? were composed and are pending validation.
The pseudonym of the philosopher and scholar Yi I (1536–1584), nicknamed the "Confucius of Korea". The 38 movements refer to his birthplace on the 38th parallel, and the diagram represents "scholar".
The list of new techniques as the Encyclopedia publishes it before this pattern.
The left-hand column shows where you face and which stance you form, seen from above; the red foot carries the greater weight. See the direction chart in the Encyclopedia if you cannot remember where each letter falls.
Summarised from Choi Hong Hi, Encyclopedia of Taekwon-Do, volume IX. The order of movements and the diagram follow the book; the explanatory texts and the footwork schematics are our own work.