Hi @dexxta, thanks for your interest in the book! 
There’s a chance we’ll cover OCR to some degree – do you have a specific use case you’d like to see covered? In case you find this helpful, we have a tutorial on the site about using Google’s Tesseract library to add OCR to apps – you can check it out here: https://www.raywenderlich.com/306-tesseract-ocr-tutorial-for-ios
The final NLP project is still TBD and we might end up doing something like an app that uses your camera to provide realtime translations of text. However, that’s still up in the air and I can’t promise anything yet, so if OCR is your primary reason for considering the book, than I would recommend holding off until we have a definitive answer.
Please let me know if you have any other questions or concerns about the book!
-Chris