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Peirce’s 10 classes of signs
Click the image on the right to see how the genuine classes of signs discussed by Peirce in 1903 fit into our scheme. Note that they appear in the 66 Periodic Table preserving the same relations they show here.
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Semeiotic Wheel
Click the image on the right to go to the interactive wheel. How does Goethe´s theory of colors relate to Peirce´s theory of categories? Find out the 66 classes of signs by applying the logical rule of material implication in the process of determination among the three sign correlates. Here you will find out which classes of signs are allowed while you rotate the wheel to explore its possibilities. See how the Semeiotic Wheel is related to our Periodic Table of Classes of Signs.
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Periodic Table of Classes of Signs (interactive)
Click the image on the right to go to the interactive table. The 66 classes of signs arranged in this triangular shape show regular periods revealing the increase of complexity of semeiosis as it reaches communication, as well as phases that describe the whole process of inquiry. Here you will get an analysis and useful examples of each class of sign. Each class is also represented in a figure – the Solenoid of Semeiosis – showing how the sign aspects relate to one another.