# Pre-flight checks before processing a book

From https://ibrahimsalman.vercel.app/guides/scanned-book-ocr

- [ ] Identify single pages and spreads; avoid splitting every image indiscriminately.
- [ ] Check page dimensions, orientation and whether the gutter is inside the search band.
- [ ] Verify language support and keep a raw Tesseract baseline.
- [ ] Set aside contents, notes, indexes and multi-column pages for layout review.
- [ ] Identify tables and handwriting that need a separate evaluation.
- [ ] Define the output format and whether headers, hyphens and page boundaries should be retained.
- [ ] Hand-transcribe a representative sample and compare CER, WER and reading order with fixed scoring.
- [ ] Measure the complete pipeline on your machine and budget for manual review of failures.