First, per the recommendation of Nation (2001) and others, class time should be devoted to explicit vocabulary instruction in the most frequent word families, selection of which may be informed through teachers’ use of frequency information. Lexical frequency profiles can be conducted on course materials—whether published or authentic—using the Range (Heatley, Nation, & Coxhead, 2002) profiler, which is freely available via Paul Nation’s website, or the more user-friendly vocabprofiler available via www.lextutor.ca.Teachers can then target vocabulary instruction on the first 2,000 to 3,000 most frequent word families.