Comprising over 40 volumes with the ambiguous title "Ernstes Spiel" (Serious Play), the planned catalogue raisonné of Michael Müller’s art is a unique undertaking. It will introduce the near inexhaustible oeuvre with close collaboration from the artist himself, providing a comprehensive overview of the painting and graphic art, sculpture, installations and performances. In addition, it will present Müller’s texts, which cover a spectrum of different disciplines the natural sciences, poetry and linguistics, philosophy, and music. The catalogue raisonné, published in German, English and Chinese, is a project spanning several decades and, in addition to detailed documentation, will also offer a classification of Müller’s art by renowned authors. Volume 1.3. presents Müller's painterly work from 2020 to 2021 in full and in detail for the first time. With accompanying essays by Lukas Töpfer, Rudolf Zwirner and Oliver Koerner von Gustorf. 計劃中的邁克爾·穆勒藝術作品全集多達40餘卷，是一個獨一無二的弘大項目，標題為頗具雙重含義的《認真的遊戲》。在藝術家的密切配合下，作品全集將展示這位藝術家廣泛無窮的作品，旨在全面概述他的繪畫、素描、雕塑、裝置作品和行為藝術，以及他橫跨自然科學、詩歌、語言學、哲學和音樂等不同學科領域的文字作品。這套藝術作品全集以德文、英文和中文出版，將是一個歷時數十年的項目，除了詳細的文獻資料外，還包括知名作者對穆勒藝術的評述。 第1.3卷 2020年至2021年的繪畫作品。附有盧卡斯·特普費爾、魯道夫·茨維爾納和奥利佛·柯纳·冯·古斯托夫的藝術評論文章。