This catalog, for the first time, highlights the relationships and affinities between Swiss-German painter Paul Klee, a leading figure in twentieth-century art, and Fausto Melotti, an Italian artist whose name has become increasingly well known at an international level in recent years, by means of a surprising dialogue between their works. The catalog compares over seventy paintings, watercolors, and drawings by Klee with some eighty sculptures and drawings by Melotti. A large selection of critical essays and short writings by contemporary artists contribute to casting light on the relationship between these two protagonists of twentieth-century art.