The poem objects are made of reflective, metal foil. The box and loose sheet have an octagonal shape. -- Source of annotation: Marvin or Ruth Sackner.

Consists of several ampoules with different colored solutions, each labeled with an "ism" of art. -- Source of annotation: Marvin or Ruth Sackner.

This book depicts representative examples of Calleja's poetry. -- Source of annotation: Marvin or Ruth Sackner.

Of this group of poets, Calleja's contributions were the only visual poems. -- Source of annotation: Marvin or Ruth Sackner.

This book is an anthology of the work of contemporary Catalan visual poets that depicts two works by the 32 contributors. -- Source of annotation: Marvin or Ruth Sackner.

Each participant in this mail art project was given a photograph of the same young woman with the lower half of her face concealed by a mask. They were free to modify it but could not remove the mask. -- Source of annotation: Marvin or Ruth Sackner.