Oxford Reading Tree Stage 4 Picture Book 30-Book Set (with Audio) Free Shipping! Free Shipping! Free Shipping! This is a great value set featuring popular stages from the "Oxford Reading Tree (ORT)" series, a staple in English language learning. It's a good resource for practicing everyday conversation with simple English words. It is also used as a textbook for the English language in the UK. Please use it if you are interested in English, or for your children's reading aloud or reading aloud. Includes audio for all books (American and British pronunciation). Set Contents Stage 4: 30 books Product Specifications Format: Paperback Size: Approximately 19 cm x 17 cm *Due to being an overseas publication, the binding, paper quality, and printing may be slightly rougher compared to Japanese books. There may be small corner folds, dents, scratches, and stains, but none of these affect usability. Please understand this before purchasing. This is a copyable printed matter, so we cannot accept cancellations or returns after shipping. Please understand this beforehand.