Books of English word frequencies have in the past suffered from severe limitations of sample size and breadth. They have also tended to be restricted to word forms alone. Most importantly, almost all have dealt only with written language. This book overcomes these limitations. Based on the new version of the British National Corpus, this is an up-to-date examination of word frequencies in English. Its distinct approach covers both speech and writing, and provides information about the differences between spoken and written English and between the different varieties of language.