The Fact Finders series is the non-fiction component of Oxford's popular infant reading scheme, Oxford Reading Tree. The Fact Finders introduce non-fiction books to infant children, and focus on developing the information retrieval and handling skills they need to use them effectively. The series encompasses a whole range of genres, illustration styles and subject focuses. The titles are grouped into topic units. Units D, 'Food'; E, 'Where people live'; and F, 'Our environment' follow on from the previous Units 'Myself', 'Families', and 'Houses and homes', all classroom favourites. The units progress in difficulty from Unit A through to Unit F. Links with the ORT story books in terms of content and level are given in the accompanying teacher's guides, which also offer teaching strategies and photocopiable activities. Unit E, 'Where People Live', supports National Curriculum Geography, History, Science, Technology, and Mathematics, as well as developing reading skills and demonstrating different styles of non-fiction writing.