Ethiopia's multi-award-winning artist Elias Sime (born 1968 in Addis Ababa) impresses with monumental wall reliefs made of ornamentally interwoven wires and cables or sawn-up circuit boards. For years, together with his team, he has been tirelessly reworking discarded electronic components into complex and colorful assemblages. In doing so, he draws on traditional Ethiopian techniques of weaving, braiding and carving. Sime is interested in the "biography of the material" and each collage is a search for traces (of the local and global past). The artist obtains the electronic waste, which the countries of the global North are known to like to "dispose of" in the African continent, from the flea markets in Addis Ababa. His friezes are monuments both to the throwaway society and to global networking and interaction. Echo ¿¿¿¿ ¿¿¿, a richly illustrated book, gives an overview over the artist's fascinating career and is published on the occasion of the solo show at the Kunstpalast Düsseldorf. The volume includes insightful essays by Felicity Korn and Andria Hickey as well as an important conversation with Hans-Ulrich Obrist from 2016. Also discussed is the Zoma Museum complex, which was initiated by Sime (together with the curator Meskerem Assegued)-a total work of art that is exemplary for sustainability and community building.