Dear Dr. Donohue: Some time ago, I remember reading what you wrote about isometric exercises. It intrigued me at the time. I forgot the details. Will you have another go at it? -- K.R. Dear K.R.: ...

Wondering how to do Isometric drawing? Sometimes called isometric projection, this type of 2D drawing is used to draw 3D objects using 30-degree angles. It's also a type of axonometric drawing, ...