Some Early oneperson Catalogs and Associated Exhibitions (photos, press, invitations, posters)
1968 to 1986
 The catalogs often introduced a new art workphase of Manfred Mohr. Each was associated with one or two exhibitions.
 In May 2011, we created on emohr.com a webpage commemorating the 40th anniversary of the historic exhibition "Manfred Mohr  Computer Graphics  Une Esthétique Programmé"  ARC Musée d'Art Moderne de la Ville de Paris  11. May  6. June 1971". This webpage contained a PDF of the workphase catalog, 1971, associated with the show as well as archival material including photos, press, invitiatons, and posters.
There has been a very positive response to this webpage.
 Thus we are providing on this webpage more PDFs of Manfred Mohr's early catalogs and some of the archival material from their associated exhibitions.
 Note that not all workphases were associated with a oneperson catalog. We will later include documentation from these workphases also.
 All artwork starting in 1969 is generated with selfwritten computer algorithms.
 The 11 workphase catalogs with links from this webpage:
1968  first workphase catalog  hard edge geometry influenced by electronic and technical signs, paintings from 19671968
1971  first computer graphics catalog  historic museum show in Paris  computer generated algorithmic drawings from 1969  1971
 some algorithmic ideas included: linear transformations to form surfaces, adding and subtracting lines, curve fitting, shifts to create fuzzyness.
1974  second computer graphics catalog  continuation of 1971 catalog  computer generated algorithmic drawings from 1971  1973
 some algorithmic ideas included: lines of square used as an alphabet, series, space partitioning, path finding
1975  first catalog with the cube  the 12 lines of the cube are used as an alphabet, computer generated algorithmic drawings/films/etchings from 1973  1975
 some algorithmic ideas included: combinatorial math with lines, mathematical logic operations, complimentary objects, statistical distributions, rotation
1977  second catalog with the cube  cube as an alphabet, clipping with a window and cuts by cartesian planes, partition into inside/outside lines, from 19751977
 some algorithmic ideas included: adding and summing of lines, overlay of paper, clipping by cartesian planes, extension of lines from one object to another
1978  same workphase as last part of 1977 catalog, clipping with a window and cuts by cartesian planes, drawings/paintings 19771978
1979  first catalog with hypercube, graph of 4D hypercube, diagonal paths introduced, drawings/paintings/reliefs 1977  1978
 some algorithmic ideas included: structures and substructures, combinatorics, magic square, division of structures
1980  retrospective of work from 1965  1980, with work from Mohr's informal, geometric, and computer generated algorithmic workphases
1981  return to the 3D cube  4cut, a computer generated multipart canvas/wood structure with outlines (shape) and inlines (linear graphic sign), 1980  1981
 multilayered drawings, multipart reliefs, series of multipart reliefs
1985  4cut as generator of multigeneration organiclike growth, multipart shaped structures with outlines and inlines, 1981 1984
1986  4cut with spine of the growth superimposed over outlines (multipart generated forms), 1985 1986

1968:
Manfred Mohr "signes géométrigue"
 Galerie Templon, Paris, France 05. Nov. 1968  30. Nov. 1968
 This is Manfred Mohr's first workphase catalog.
 This catalog contains works from 19671968. In this workphase from 1966  1969, Manfred Mohr created hard edge geometric artworks which he later called 'Surrealistic Geometry'.
 His elements were influenced by electronic and other technical signs and arranged so that the pictorial construction created a visual tension field.
 In addition to paintings, drawings, and lithographs, he created wooden reliefs, an interactive kinetic sound machine, multipart works, works in series, and a visual poetry book.
 In this period, he had his first and second oneperson shows.
 The events of Mai '68 in Paris influenced his first exhibition.

Catalog, Invitations, Photos, Press ... 
1971:
Manfred Mohr  Computer Graphics "Une Esthétique Programmée"
 ARC  Musée d'Art Moderne de la Ville de Paris, 11. May  6. June 1971
 This is Manfred Mohr's first catalog with computer graphics.
 In this workphase from 19691971, Manfred Mohr had the above mentioned exhibition in Paris, which is now regarded as an historic show.
 It is also his first oneperson exhibition in a museum.
 After having first used the computer at the newly formed University of Paris at Vincennes
and having one time access to a light pen plotter at Brookhaven National Laboratory and then to a Zuse flatbed pen plotter
at the University of Darmstadt
in 1969, Manfred Mohr was given access to the flatbed pen plotter and computer at the Meteorologie National in Paris. He worked enthusiastically nights and weekends
experimenting with the new machines.
 In this workphase and the next 1974, Manfred Mohr developed many new and different ideas and wrote algorithms to realize them as drawings.
 Algorithms/Methods from this workphase: mathematical methods  linear transformations from one form to another, spline functions to create curves, adding (and subtracting) lines to create forms, matrix layout, stretching, shifting to create fuzzy surfaces (vibrations), reflection, negative and positive surfaces, hashed surfaces, overlaying, space defining random walks. Geometric objects  lines of varying thicknesses, curves, circles, squares, cubes. Inventing random electronic circuits, abstract texts, random alphabets, tracing forms with an electronic light pen.
 In this period, besides the computer generated drawings, he made computer generated collages, sculptures, a random number book, and a model of a room with a drawing of a continuous line traversing its walls.

Catalog, Invitation, Photos, Press ... 
1974:
Manfred Mohr "Drawings Dessins Zeichnungen Dibujos"
 Galerie Weiller, Paris, 13 mars  13 avril 1974
 Galerie Gilles Gheerbrant, Montreal, 24 avril  22 mai 1974
 This is the second Manfred Mohr workphase catalog with computer graphics.
 This workphase contains works from 19711973.
 In this workphase, as in that of the one before (1971), Manfred Mohr developed a new algorithm for each drawing and explored many different ideas.
 Algorithms/Methods from this workphase: Series of drawings, partitioning of space, path finding, space filling, reflections, projections on spheres, projections
into circles, geometric objects with their lines as the alphabet (squares, triangles), angles corresponding to the alphabet and numbers, complementary lines,
spaces and subspaces (lines into squares), more spline fits for curves, more hashed surfaces (vertical, horizontal and circular), inversion of images, arcs of circles, nonintersecting objects, squares with moving sides, dividing of objects, rotation, sliced objects.
 In this workphase, besides the computer generated drawings, he started making computer generated films, some of which were
published in the next workphase catalog in 1975.

Catalog, Invitations, Photos, Press ... 
1975:
Manfred Mohr "Cubic Limit, Generative Drawings, Part I Travaux de 19731975"
 Galerie Weiller, Paris, 29 Mai  28 Juin 1975
 This is the first Manfred Mohr workphase catalog using the cube as a fixed structure. He uses the lines of the cube as his alphabet for his drawings.
 This workphase contains works from 19731975.
 The first hundred copies of this catalog contained a computer generated etching.
 The graphical elements consist of subsets of the lines of a cube. This is an extension to the cube of his drawings from 1972 where he uses the lines of squares and triangles as the alphabet.
 Rotation of the cube is introduced here.
 Algorithms/Methods for this workphase: Series of all combinatorial number of lines n at a time, symbolic logic operations, various clusterings of
elements, complementary elements, computer generated visual diagrams explaining the process, use of numbers as well as graphic elements.
 In this workphase, besides the computer generated drawings and etchings, he created computer generated films.

Catalog, Invitations, Press ... 
1977:
Manfred Mohr "Cubic Limit, Generative Drawings, Part II Travaux de 19751977"
 Galerie Weiller, Paris, 18 Octobre  19 Novembre 1977
 In this workphase Manfred Mohr continues using the 3D cube as a fixed structure.
 This workphase contains works from 19751977.
 This catalog introduces windowing, clipping, and cutting into Manfred Mohr's work with cubes. The clipping of the cube creates the tension between the independent rotations along the cutline.
 The first part of this catalog continues to use the lines of the cube as an alphabet: subsets of the cube are added up to form larger subsets, lines are summed up to create thicker lines,
transformations from one cube to another are shown.
 The next part of the catalog extends the lines of the cube to fixed points along a larger structure and then rotates the cube holding
these outside points fixed.
 The last part of the catalog cuts the cube by its frontal square window (0,0,0 rotation of the cube), seperating the structure into inside and outside lines. The cubes are also cut by horizontal, vertical or planes in the Z direction while showing 2 independent rotations of the cube in each half. Long series of these
windowed and cut rotations are shown. The tension of the rotation along the cutline are made visible in these series.
 In this period, Manfred Mohr returned to making paintings as well as drawings from his computer generated work. He also made transformations of texts and graphics from one text or object to another, on among other materials sprocketed printer paper. He also wrote some programs for
cylindrical, pyramidal and conical anamorphoses projections associated with an exhibition in a museum.

Catalog, Invitations, Photos, Press ... 
1978:
Manfred Mohr "Generative Bilder und Zeichnungen 1977/78"
 Galerie Heinz Teufel, Cologne, Germany, 7 April  9 June 1978
 Same workphase as last part of 1977 catalog, clipping with a window and cuts by cartesian planes, drawings/paintings 19771978.

Catalog, Invitations Photos ... 
1979:
Manfred Mohr "Dimensions, Generative Works, works from 1977  1978"
 Galerie D+C MuellerRoth, Stuttgart, 4 Marz  22 April 1979
 This is the first Manfred Mohr workphase catalog using the ndimensional cube as a fixed structure. In this workphase, he uses the graph of the 4th dimensional hypercube.
 This workphase contains work from 19771978.
 In this workphase, Mohr also introduces the diagonal path as an element/alphabet in his work.
 Algorithms/Methods: paths over structures, substructures, division of a structure into parts, recombination of divided structures, magic square as a composition element, combinatorics, numbered paths, path lines are summed to create thicker lines, vertices used as element, computer generated visual diagrams to describe a process, black and gray ink drawings.
 The work consists of drawings, paintings, series of paintings, and multipart wooden reliefs.

Catalog, Invitations, Photos, Press ... 
1980
Manfred Mohr "Werkübersicht von 19651980"
 Galerie Heinz Teufel, Cologne, Germany, 1 March  20 April 1980
1981:
Manfred Mohr "Divisibility, Generative Works, works from 1980  1981, 1981"
 Galerie Gilles Gheerbrant, Montreal, 10. Octobre  3. Novembre 1981
 In this workphase, Manfred Mohr returns to the 3 dimensional cube. He creates multipart structures and shaped canvases which use windows and cuts to show the tensions between independent rotations of the cube. He creates surface and line interactions with rotations of the cube.
 This workphase contains work from 19801981.
 This workphase introduces the 4cut and outlines/inlines (surface/linear signs) paradigm and extends the cuts and windowing of Cubic Limit II (1977).
 The first part of this catalog shows the 2cut of Cubic Limit II (1977) with very thick lines which approach surfaces.
 The next part of this catalog shows a 4cut, with inside/outside  black/gray lines, which are moved in incremental alternating horizontal and vertical steps into overlapping positions.
 The last part of this catalog introduces the 4cut, a cube cut through its origin into 4 parts by the cartesian x and y axes, where 3 of the 4 parts have an independent rotations, and the 4th part matches its opposite rotation, to create a visual balance. The workphase emphasizes the outer form (surface)
of the 4cut as well as the inner lines, thus creating the outline/inline paradigm. The horizontal and vertical cut emphasizes the tension between the independent rotations.
 Surfaces are achieved in the drawings with 2 overlaying pieces of paper each with a different part of the drawing on it. The bottom paper has the outlines filled in with black ink. The top paper has the inlines. Thus the 2 overlayed (slightly transparent) papers form the "surface/linear signs" paradigm.
 Multilayered drawings, multipart reliefs, series of multipart reliefs, matrices of multipart reliefs are created on canvas and in wood.
The outlines become the shape of each part of the object (surface) and the inlines are drawn on the canvas of each part.

Catalog, Invitations, Photos, Press ... 
1985:
Manfred Mohr "Divisibility II, Generative Arbeiten, works from 1981  1984, 1985"
 Galerie Teufel, Cologne, 19. Januar  19. April 1985
 This workphase extends the last workphase Divisibility I 1980, by using the original 4cut as a generator of an organiclike growth.
The outlines of the last generation of the structure are used to generate the next generation of the structure (with no overlapping parts). Thus a graphlike multipiece graphic object is formed.
 This workphase was developed 19811984.
 These objects were first realized on paper and canvas with the outlines and inlines drawn. They were eventually realized as shaped canvas and wooden reliefs (as in Divisibility I, 1980), as multipiece growths with the outlines as the shape of each part and the inlines drawn on the canvas of each part.

Catalog, Invitations, Photos, Press ... 
1986:
Manfred Mohr "Divisibility III, Generative Works, works from 1985  1986, 1986"
 Galerie D+C MuellerRoth, Stuttgart, 6. Dezember 1986  24. Januar 1987
 This workphase is the complement of the last workphase Divisibility II 1984. It again shows the organiclike growth over the original
4cut as generator. Here only the outlines are shown as shapes (the inlines are not present). The growth is shown as a spinelike
broken branching line, each part of which passes through the generating center of the 4cuts of one generation to the centers of the 4cuts of the
next generation.
 This workphase was developed 19851986.
 The works are realized as drawings and paintings with hash lines filling the outlines (surfaces) and as relief structures with the outline shaped surfaces in gray cardboard and the spine in wood, superimposed on the growth.

Catalog, Invitations, Photos, Press ... 
