"Kamae" from the technical manual "Budo", Morihei Ueshiba 1938

Standing and walking – that’s pretty basic. It’s so basic that it’s really the first thing you learn in most budo, or even in life – if anybody can remember back that far.
Like everybody else, I received basic instructions in how to stand when I started Aikido – point the front foot forward and the back foot out at an angle. Some places break that down into a more detailed description, but that’s usually the gist of it.
Pretty easy right? Anybody can do it – which may be the problem. If anybody can do it, and you’re doing essentially the same thing that you’ve always done…why are you spending all that time on the mat?
"Budo" is a pre-war technical manual published in 1938 by Aikido Founder Morihei Ueshiba. It was originally created for Prince Kaya Tsunenori, member of a collateral branch of the imperial family. Kayanomiya would eventually become Superintendant of the Army Toyama School – where Morihei Ueshiba would act as an instructor before the war.
"Budo" remains the largest and most organized collection of technique from the pre-war period, and an English edition ("Budo: Teachings of the Founder of Aikido"), translated by John Stevens, was published in 1991.
A separate edition, the "Takemusu Aikido Special Edition", translated by Sonoko Tanaka and Stanley A. Pranin, was published in 1999 ("Budo: Commentary on the 1938 Training Manual of Morihei Ueshiba"). This edition is composed of some excerpts from the Japanese text, along with a commentary by Morihiro Saito, in both English and Japanese.