Cambridge book layout
Each book follows the same structure as Cambridge IELTS Academic Books 19–20: four complete tests, each with Listening (40 questions), Reading (40 questions), Writing (2 tasks), and Speaking (3 parts). Filter by Book 19 or Book 20 on the mock library to practice alongside your PDF.
Upload PDFs to resources/IELTS/ and drop mock JSON under mock test/IELTS/…/Cambridge Book 20/, then run npm run sync:folder-mocks.