| 2007 Gabriel Garcia Marquez and the magical humor. Jorge Martinez gallery - Guadalajara, Mexico |
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| 2007 Because things are like this. Haus der Kunst gallery - Guadalajara, Mexico |
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| 2002 Calarca - O.Cuellar, Facing Faces. Bogota International Book Fair - Colombia |
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| 2002 Calarca - O.Cuellar, Facing Faces. The humor factory - Alcala de Henares, Spain |
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| 2001 Mankind's great inventions. Alcala de Henares University - Spain |
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| 2000 With humor cinema. Alcala de Henares University - Spain |
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| 1999 Third millenium. Alcala de Henares University - Spain |
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| 1999 Uncle Sam. Alcala de Henares University - Spain |
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| 1998 Humor kick off. Bogota International Book Fair - Colombia |
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| 1997 The picaresca, from Quevedo to our days. Colsubsidio museum of museums - Bogota, Colombia |
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| 1997 One hundred years of solitude, thirty years after. National University of Colombia - Bogota |
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| 1995 Humor and tolerance. Alcala de Henares University - Spain |
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| CONTESTS |
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| 2019 XXVII International exhibition of satire and humorism Andromeda - Italy. Special mention of the jury |
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| 2018 1st LIBEX competition - Italy. Honor mention |
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| 2016 5th Sinaloa International cartoon contest - Mexico. Third prize |
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| 2008 Dedete International Biennial - Cuba. Third prize |
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| 1992 6th Cafam internacional cartoon contest. Honor mention |
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| 1990 5th Cafam internacional cartoon contest. Honor mention |
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| 1989 4th Cafam humor drawing contest. First prize |
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