The concept of positive and negative space is a fairly simple one. The subject of a work of art occupies the positive space, while everything else is considered negative space. Nearly every piece of representational art contains positive and negative space. The way that artists make use of positive and negative space to enhance their artworks is less simple, but very visually interesting.
N is for Negative Space (How to Use Gestalt Theory for a Memorable Logo) - N-Vision Designs
Positive and Negative - The Arts Quotient
15 Elements and Principles of Art That Take an Artist from Beginner to Master
Technique Tuesdays: Pointillism - Principle Gallery
P.S. Art 2021: Student Artworks - The Metropolitan Museum of Art
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Escher and positive negative space - Weiner Elementary Original
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P.S. Art 2021: Student Artworks - The Metropolitan Museum of Art
Technique Tuesdays: Positive & Negative Space - Principle Gallery