Accuracy across proficiency levels: A learner corpus approach. Jennifer Thewissen. Presses Universitaires de Louvain, Lougain-la-Neuve, Belgium (2015). 342pp.

A review of the book based on Thewissen’s PhD thesis, which used the International Corpus of Learner English (ICLE) (Granger et al., 2009) for two main purposes. The first purpose was to capture the development of linguistic accuracy of the argumentative essays written by learners of English at intermediate to advanced levels, namely B1 to C2 in the Common European Framework of Reference (CEFR) (Council of Europe, 2001). The second purpose was to create a set of L1-specific CEFR descriptors related to the linguistic accuracy by building on the results from the essays written by learners who have French as their L1.