Design Books? Ergonomics aesthics

Mech Engineer here, interested in design, the question is there any book or online resource which relates to the size of hands and seat heights , posture etc… any recommendations or rating pls…

…i’ve looked many times for such on www and have never found anything for free…spend the $60 for measure of man and woman by dryfuss…or see your local librarian

Human Dimension and Interior Space: A Source Book of Design Reference Standards by Panero