Kes: while Googlebooks is inaccessible, occasionally one can find the title online by searching for texts on archive.org which is how I found these titles. Note that the links take you to the plaintext version, but both titles are available in a variety of formats, including ePUB and Daisy.
1. Psychology and art of the blind by Géza Révész (Longmans, Green, 1950)
http://www.archive.org/stream/psychologyartofb00gr/psychologyartofb00gr_djvu.txt
2. The Nature of Creative Activity: Experimental and Comparative Studies of Visual and Non-Visual Sources of Drawing, Painting, and Sculpture by means of the
Artistic Products of Weak Sighted and Blind Subjects and of the Art of Different Epochs and Cultures
by Viktor Löwenfeld
http://www.archive.org/stream/natureofcreative00vikt/natureofcreative00vikt_djvu.txt
1. Psychology and art of the blind by Géza Révész (Longmans, Green, 1950)
http://www.archive.org/stream/psychologyartofb00gr/psychologyartofb00gr_djvu.txt
2. The Nature of Creative Activity: Experimental and Comparative Studies of Visual and Non-Visual Sources of Drawing, Painting, and Sculpture by means of the
Artistic Products of Weak Sighted and Blind Subjects and of the Art of Different Epochs and Cultures
by Viktor Löwenfeld
http://www.archive.org/stream/natureofcreative00vikt/natureofcreative00vikt_djvu.txt