Edited sentence: An internationally renowned artist, Edward Plunkett approached the visual universe with great originality, suggesting the world is not exactly as we suppose.But, as a screen which yields to opposing pressures, the threshold-diaphragm cracks and is shattered.His work sparkles with ideas, often in single forms that challenge the mind with vertiginous logic or perpetual movement.Plunkett’s art and design were linked to his background in architecture and were described in 1975 by Italian Art Critic Giulio Carlo Argan as follows:.So it is demonstrated that the ambiguity is not of the senses but of thought itself, or of the whole being.The mind elaborates on the same visual data, finding solutions which are different, although simultaneous, which the eye confirms.The visual attention, distracted from usual directions, is attracted by apparent anomalies, by the subtle play of anamorphosis, by the double or triple readings of the same image.This is a process of interdiction or of rerouting: all the logical solutions which would lead to the exclusion of the other ones are intercepted and deviated.Under the magic of his art, the commonest round shape becomes enchanted, the elongated rectangular becomes human and the void soars away from Earth, taking us to a determined fourth dimension named “fantasy, illusion, time”.•	For Plunkett a painting is a threshold, a diaphragm between two dimensions that tend to melt together: it preserves the iconology of the stretcher, of the jamb, of the frame.•	In Plunkett’s figures there is generally a suppression or alteration of some indispensable information for activating out the psychological mechanism by which, from a bi-dimensional rendering, a three-dimensional reality is reconstructed: the image is thus deprived of its natural support, suspended in a void which is not only a physical one.•	Plunkett’s art is the outcome of a train of thought followed to the ultimate exclusion of alternate possibilities.•	There enters into play a principle similar to that of non-determination, by which a problem may have several solutions, all mathematically correct