Form and space are fundamental elements in design and even in architecture. They create a relationship that is necessary for effective design, and understanding these elements can help create more holistic designs.

Form refers to the positive element in a design. It is mostly three-dimensional and more realistic, creating a sense of depth and volume in a design. Forms can be geometric or organic. Geometric forms are precise and include shapes like triangles, squares, etc. Organic forms have a more natural look with a curvy flow. They are asymmetrical and irregular elements and are associated with the natural world. The form and its opposite, space, constitute primary elements of architecture. The reciprocal relationship between form and space is essential, given the intention of architecture to provide internal sheltered space for human occupation.

Space refers to the area that a design or a building occupies. It can be thought of as the negative or vacant area surrounding a form. Space helps to highlight the focal point of a design, simplify its readability, and make it aesthetically pleasing. There are different types of space in design including positive space (the area of a design filled with elements) and negative space (the background or empty area). The right balance of negative and positive space makes the composition complete and helps to create visual interest. In architecture, the nature of space, its potential, and limitations, are what dictate the design of a building.

In design, form and space work together to create a visual experience and establish the overall feeling of a space. For instance, adding shading to a circle creates an illusion of volume and three-dimensionality, transforming it into a form. Similarly, space can be a very important design element, used to create visual interest, balance, and contrast. When used wisely, space can help to make a design more aesthetically pleasing and easier to understand.