Regina Martini's book 'Füllfederhalter' is aimed primarily at beginning collectors and conveys first important hints on building a collection. Writing instruments of various brands are presented, but only partly with photos in colour or black-and-white. The guideline prices listed in the book were valuable orientation at the time of publication but are completely outdated today and show how strongly collector prices have meanwhile risen. Important to know: the book has appeared with absolutely identical content also in an edition with red cover, so a double purchase merely because of the cover is not worthwhile.