“…The latter have tended to take for granted that because grammar knowledge underlies skillful writing (Heringer, 2000;Hoffmann, 2000) and appropriate reading comprehension (Glinz, 1993;Heringer, 2001), grammar instruction will automatically foster both. In the present chapter, consideration will be given first to studies on the impact of grammar instruction on writing (Klotz, 1996;Scholz, 1975) and to studies on reading (Blatt, Müller & Voss, 2010;Funke, Wieland, Schönenberg & Melzer, 2013;Hohm, 2007;Szubert, 2015; see also Herrmann, 1974;Döhmann, 1977). Subsequently, some findings about the effects of grammar instruction on spelling and punctuation will be compiled.…”