Book excerpt: Mid-Century Modern Interiors explores the history of interior design during arguably its most iconic and influential period. The 1930s to the 1960s in the United States was a key moment for interior design. It not only saw the emergence of some of interior design's most globally-important designers, it also saw the field of interior design emerge at last as a profession in its own right. Through a series of detailed case studies this book introduces the key practitioners of the period – world-renowned designers including Ray and Charles Eames, Richard Neutra, and George Nelson – and examines how they developed new approaches by applying systematic and rational principles to the creation of interior spaces. It takes us into the mind of the designer to show how they each used interior design to express their varied theoretical interests, and reveals how the principles they developed have become embodied in the way interior design is practiced today. This focus on unearthing the underlying ideas and concepts behind their designs rather than on the finished results creates a richer, more conceptual understanding of this pivotal period in modernist design history. With an extended introduction setting the case studies within the broader context of twentieth-century design and architectural history, this book provides both an introduction and an in-depth analysis for students and scholars of interior design, architecture and design history.