You can scale better
when you have a trained

Comparative Eye

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All drawing from a visible subject is comparative drawing.
That's true whether you're in Sight-Size or not.

The difference depends upon scale.

When you draw at a different size than you see your source you have to scale your drawing. That is variously known as comparative drawing, proportional drawing, and comparative measurement.

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When you're not in Sight-Size, you are drawing using comparative measurement.
It helps to have a trained comparative eye.

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And the best way to develop a comparative eye is by deliberately practicing discrete skills that focus
on scaling your source image.

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A Comparative Eye
contains over two-dozen progressive exercises suitable for everyone who wants to improve their visual accuracy when using comparative measurement.

The exercises in
A Comparative Eye help you practice
scaled reduction and enlargement.

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Each exercise comes with keys, that show you whether or not you have accurately scaled the images.

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2 downloadable PDFs:
A Course Book and a Workbook.

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Get both A Comparative Eye and An Accurate Eye
at 10% off their individual prices!