This document appears to be the introduction or first chapter of an English language learning manual. It was created by Wilton Mak and published on his website opikom.com. The manual covers basic grammar topics like parts of speech, sentence structure, and formality in language. It includes examples, exercises, and activities for learners to practice and improve their English communication skills. The introduction expresses gratitude to others who contributed ideas and acknowledges one learner in particular who the book is dedicated to helping improve their English.