The Part Of Speech tagging in natural language processing applications, and specifically focuses on developing an accurate and efficient POS tagger for the Gujarati language, which is widely spoken in Gujarat. POS tagging involves assigning a tag or marker to each word in a sentence, which can help disambiguate phrases, process information, and transform language.The book highlights the importance of developing effective POS taggers for different languages and provides insights into the approaches that can be used to improve their accuracy.