In Volume 1, an inventive book of visual poetry, Zend has created an imaginary character, Oab who plays word games dealing with a multitude of topics with his own creation, Irdu. -- Source of annotation: Marvin or Ruth Sackner.

In Volume 2 of this bookwork, Zend continues the history of his imaginary character, Oab who plays word games with his own creation, Irdu. The character Ardo, who is a mystic dealing with the fourth dimension, is introduced. Some of the mathematical content in the beginning of this volume is reminiscent of Abbott's "Flatland." -- Source of annotation: Marvin or Ruth Sackner.