Art Nouveau Patterns and Designs gathers full-color ornamental artwork associated with the Art Nouveau movement, presenting the flowing lines, botanical forms, and decorative arrangements that helped define the style around the turn of the twentieth century. The volume reproduces plates drawn from René Beauclair’s earlier work, Dessins d’ornementation plane en couleurs art nouveau, originally issued in French and German editions in 1900. Its designs are intended as both a visual record of Art Nouveau decoration and a practical resource for artists, designers, and readers interested in historical pattern making. The collection emphasizes surface ornament, stylized plant motifs, and the elegant linear compositions characteristic of the period. As a compact reference, it offers a focused view of the decorative vocabulary that shaped posters, interiors, printed matter, and applied arts during the Art Nouveau era.