Mapping Mental Spaces: Volume 1    by Bill Whitehouse
Price: $9.99 USD. 235490 words. Published on September 18, 2009. .
The two volumes which give expression to 'Mapping Mental Spaces' are a series of working exercises involving different problems which are entailed by issues of: hermeneutics, innate ideas, apodicticity, belief, meaning, model-building, psychology, mythology, mysticism, logic (Volume 1), fields, mathematics, chaos theory, quantum mechanics, chronobiology, and holographic theory (Volume 2).

Mind Fiction Series No 2. - Exclusive Materialism    by U. Turner
Price: $9.99 USD. 20500 words. Published on August 6, 2011. .
INTRODUCTION TO H: Contradictions are, I believe, to remember what it was like to not know something we now know for certain, and this, the capacity to know something and at the same time remember clearly how it was to not know it, I think is one of the most peculiar faculties of mind. It has a tremendous potential in it, and from what I can see, it is hardly ever used intentionally.

Ontologia y Metafisica    by Adolfo Sagastume
Price: $3.99 USD. 20550 words. Published on June 24, 2012. .
La metafisica es la rama de la filosofía que se ocupa de la naturaleza de la realidad última. La metafísica está dividida en ontología, que tiene que ver con la cuestión de cómo muchos tipos fundamentales de entidades componen el universo, y la propia metafísica, que se ocupa de describir los rasgos más generales de la realidad.

Spaces - A Phenomenological Investigation    by Giorgio Rizzo
Price: $16.90 USD. 35820 words. Published by Turnshare Ltd.- Publisher  on February 20, 2013. .
If we want to investigate, from a phenomenological point of view, the notion of space, we cannot start from nowhere. For our “interest” in space is, as a matter of fact, guided by the exhibition of that lowest layer of space on which other kinds of spaces are grounded.