WHEN THE BIRDS FLY THE SKY FLIES (double page plate, folios 10 and 11) from SEGNI E VIBRAZIONI

THE FIRE IN THE SKY (double page plate, folios 12 and 13) from SEGNI E VIBRAZIONI

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

SIGNS AND VIBRATIONS (double page plate, folios 8 and 9) from SEGNI E VIBRAZIONI

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The Museum of Modern Art (MoMA) Collection

SHADOWS APPEAR IN THE VOID AND OTHERS DISAPPEAR IN THE SKY (double page plate, folios 6 and 7) from SEGNI E VIBRAZIONI

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VIBRATIONS OF SUPERIMPOSED LINES (double page plate, folios 4 and 5) from SEGNI E VIBRAZIONI

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The Museum of Modern Art (MoMA) Collection

THE SKY (plate, folio 3) from SEGNI E VIBRAZIONI

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Double page plate (folios 5 verso and 6) from Ouzel

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Double page plate (folios 3 verso and 4) from Ouzel

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Double page plate (folios 9 verso and 10) from Ouzel

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Double page plate (folios 15 verso and 16) from Ouzel

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Double page plate (folios 7 verso and 8) from Ouzel

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Double page plate (folios 13 verso and 14) from Ouzel

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Double page plate (folios 11 verso and 12) from Ouzel

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Double page plate (folios 9 and 10 verso) from Ouzel

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

A. SPANISH ELEGY (double page in-text plate, folios 53 verso and 54) from TRES POEMAS/THREE POEMS

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The Museum of Modern Art (MoMA) Collection

MEXICO CITY PERSONAGES III (double page in-text plate, folios 45 verso and 46) from TRES POEMAS/THREE POEMS

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

MEXICO CITY PERSONAGES I (double page in-text plate, folios 38 verso and 39) from TRES POEMAS/THREE POEMS

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

MEXICO CITY PERSONAGES II (double page in-text plate, folios 41 verso and 42) from TRES POEMAS/THREE POEMS

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Double page plate (pages 46 and 47) from Eureka: An Essay on the Material and Spiritual Universe

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Double page plate (pages 82 and 83) from Eureka: An Essay on the Material and Spiritual Universe

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Double page plate (pages 10 and 11) from Eureka: An Essay on the Material and Spiritual Universe

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The Museum of Modern Art (MoMA) Collection

Double page plate (pages 22 and 23) from Eureka: An Essay on the Material and Spiritual Universe

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The Museum of Modern Art (MoMA) Collection

Double page plate (pages 58 and 59) from Eureka: An Essay on the Material and Spiritual Universe

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Double page plate (pages 34 and 35) from Eureka: An Essay on the Material and Spiritual Universe

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection

Double page plate (pages 94 and 95) from Eureka: An Essay on the Material and Spiritual Universe

Museum of Modern Art, New York

The Museum of Modern Art (MoMA) Collection