This book consists of 26 pages of colors and various formats over a large fold-out green plate under cover grey. The word Ulceration is a heterogramme composed of the eleven most frequent letters of the French language: E, S, A, R, T, I, N, U, L, O, C. Ulceration is a poem of an anagram of the word Ulcerations.: letters are being replaced by symbols (square, circle and triangle) of different colours (blue, red and black). The five final cut rules pages are blank for the reader to write the solution to the puzzle. According to Libririe Jean-Etienne Huret in Paris, ulcerations is an indoor game on a text by Georges Perec, typographic design of Alain Roger. Saint-Pierre-la-Vieille, the catcher-Science, 1986, in-4, rel. spiral, 1 f. and 6 ff. close on grey paper, a large plate folded and 5 ff. close on green paper, 1 f. grey. (M.28*) "More that of a true reissue, it's a playful adaptation. Indeed, for the first 200 series, the text is given, but in the printing code, the letters are progressively replaced by symbols of colors (triangles, circles, squares). For the last 200 series, it remains that symbols and more text: the reader to reconstruct. "(Magne, n° 299)." For the record, the word "Ulceration" is a heterogramme composed of the eleven most common letters of French. -- Source of annotation: Marvin or Ruth Sackner.