One of his early career`s most important works are the Tallinn Writers' House offices (1963), most significantly the hall with the black ceiling. This was his minimalist and severe reaction to the existing 1950s official style that was more theatrical and festive. Although some have associated the black color with a strong symbolic shadow, Asi has acclaimed he chose the color primarily for practical reasons - to hide holes and dents of the ceiling. However, he was obliged to go to Moscow in order to justify the color choice as the bosses in Tallinn did not dare to give their signature to the project. In addition to the hall, Asi designed in the Writers' House the cabinets and its furniture.