This educational handbook, titled "When, Where and How", is a classic auxiliary textbook designed for English language learners to master basic grammatical and conversational structures. Through a series of engaging, short illustrative stories, the book systematically explains the practical usage of interrogative words, prepositions of time and place, as well as essential adverbial expressions.The material is tailored for secondary school students, adult beginners, and self-study purposes, focusing on enhancing reading comprehension, vocabulary acquisition, and communication skills in a simplified yet effective format.