Drawing Amazing Optical Illusions
- Tom McPherson

- Jan 1
- 4 min read

Optical illusions occupy a curious place in our visual experience. They are drawings that do something they should not be able to do. Flat lines suggest depth. Static shapes seem to move. Forms turn, float, or fold back on themselves. What makes them compelling is not simply their strangeness, but the moment of uncertainty they introduce. The eye hesitates. The mind recalculates. For an instant, seeing becomes active rather than automatic.
We are drawn to optical illusions because they reveal a gap between what is present and what we believe we are seeing. Vision feels immediate and reliable, yet illusions expose how much interpretation is involved. The mind does not simply receive visual information; it organises it, fills in gaps, and relies on habits formed over time. A successful illusion works by cooperating with these habits rather than opposing them. It uses familiar cues such as perspective, overlap, and contrast, then rearranges them just enough to unsettle expectation.
In this sense, optical illusions are less about trickery and more about insight. They make visible the rules the eye follows without conscious awareness. An illusion does not deceive by force. It persuades by logic. It aligns itself with how the eye already reads space, then quietly leads perception somewhere unexpected. The drawing becomes a small experiment in seeing, one that reveals not only an image, but the process by which the image comes to feel convincing.
This is what first drew me to illusion drawing. I was less interested in producing clever effects than in understanding what they revealed about perception itself. Optical illusions show that drawing does not need to imitate reality to feel real. It only needs to work with the expectations the eye brings to the page. In doing so, they offer a clear and direct way of studying how we see.
What I found surprising was how grounded illusion drawing actually is. Most illusions begin with very simple shapes and very ordinary decisions. A line is placed slightly out of alignment. A form is repeated with a small shift. Depth is suggested through overlap rather than detail. There is nothing mysterious in the process. The illusion emerges through careful structure and attention, not through complexity.
This makes optical illusions unusually accessible. They do not require advanced technique or expressive confidence. They reward patience, accuracy, and the willingness to slow down and observe what each line is doing. In many ways, illusion drawing is less about artistic flair and more about visual clarity. The drawing succeeds when the eye understands the logic behind it.
That clarity is why the book is built around step-by-step illustrations. Each drawing is broken down into clear stages so the reader can see how the illusion develops gradually. Rather than jumping to a finished image, the process is revealed line by line. This allows the eye to learn alongside the hand. The aim is not just to reproduce an effect, but to understand how it comes into being.
As the drawings progress, the book moves from simple forms to more complex constructions. Impossible shapes, floating forms, line-based illusions, and anamorphic buildings all rely on the same underlying principles. By returning to these ideas repeatedly, the reader begins to recognise patterns in how the eye responds. Drawing becomes a way of studying perception from the inside.
This approach connects closely to the habit of seeing. Optical illusions interrupt habitual looking. They slow the eye down and ask it to question its assumptions. What appears solid may not be. What seems to recede may actually be flat. In this way, illusion drawing is not about deception, but about awareness. It shows how easily perception can be guided, and how much of seeing depends on context and expectation.
I wrote Drawing Amazing Optical Illusions to share this way of working. A way of drawing that encourages attentiveness rather than speed, curiosity rather than correctness. The interest lies not in producing something impressive, but in noticing the moment when a drawing begins to behave differently, when perception shifts, and the eye starts to engage more actively.
For beginners, the book offers a structured and approachable way into drawing without the pressure of realism. For more experienced drawers, it provides a way to think differently about space, form, and visual logic. In both cases, the drawings act as small investigations into how seeing works.
Optical illusions remind us that drawing is not simply about representing the world, but about exploring how we perceive it. They invite us to look again, to notice how little it takes to change what we see, and to appreciate the discipline of focused attention that drawing makes possible.
Drawing Amazing Optical Illusions
Drawing Amazing Optical Illusions is available in paperback and eBook formats.
You can find full details in all good bookshops and purchase links at: www.circlelineartschool.com/art-books.
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