35.2 x 28cm, unpaginated with 33 full-page hors-texte images (many in color) by Kupka. Gilt printed blue paper over period boards with emblematic art nouveau design. First edition of this rare primary documentation of the pioneering Czech modernist's works of the period.A short preface is followed by thirty-three finely rendered plates after drawings and paintings by Kupka, portraying his transition from art nouveau to abstraction. An unusually fine example of the early and important monograph.