The Škofiče manuscript, kept by the Diocesan Archives in Klagenfurt, was severely damaged and thus not available for users. The paper presents the methodology of choosing the correct conservation-restoration treatments and their execution. Damaged parts were restored in such manner that the existing structural elements, which had been added to the binding through time, were kept, adjusted and included into the binding restoration. Torn and missing parts of the pages of the book block were also restored. After these treatments, the book is again available for use. Conservation-restoration treatments were performed at the Restoration and Conservation Centre ofthe Archives ofthe Republic of Slovenia.