Is there regional variation in the books being read and quizzed between the different parts of the UK (England, Scotland, Wales and Northern Ireland)? As part of his study, Professor Topping investigated this question. However, as some of these regions are rather small and numbers of readers not large in every case, it was thus not sensible to make comparisons between boys and girls across the regions for all Years (especially for Wales). For England, Scotland and Northern Ireland the comparisons start with Year 3. In Wales, however, we only report on the secondary level of education.