Oblique Drawing

For making 3D drawings. Draw the front view then draw angles backwards at 45 degrees to the horizontal base line.

Try drawing freehand you can get better effects

Isometric Drawing

For making 3D drawings. Shows more of the top of the object than oblique. Imagine the whole object in the diagram above being turned at 30 degrees to the horizontal baseline.
Both isometric and oblique give a distorted view of the object. Perspective drawings give a better idea of what an object looks like.

For 3D drawing. Used to show front and one side of an object. All the horizontal lines join a single vanishing point. If more than two surfaces of an object need to be shown two point perspective is used.

Single Point Perspective

For 3D drawing. Gives a more realistic view than single point perspective. By moving the vanishing points different effects can be obtained.

Two Point Perspective

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