R. K. Gupta's Rapidex English Speaking Course is a manual book intended for non-native English speakers and is a guide that helps them comprehend and converse in English. It is geared towards individuals who aspire to speak English in a fluent manner and addresses a wide range of readers - from people who do not understand English to anyone who has learnt English and is familiar with the grammar and rules, yet lacking the self-confidence to utilize the language in speech. This particular publication addresses people who converse in Hindi on a daily basis. It educates readers how to implement Hindi and English speech in the same niche and the alterations that ought to be made while building a sentence in English.