In this book, you will learn a lot about how to speak English for all occasions such as speaking to a hotel guest, speaking at the restaurant, speaking at the beer bar, speaking to a Taxi driver, and so on. So this book will basically teach you almost everything you need to know about English speaking. It is great.
Now luckily, you can get it free without any cost. Speaking English is now one of the most required skills in any job description, so having skills to speak English will let you beat any competitor you come through in your job applications. So please study hard and get a good job. I hope you will for sure.
Nothing comes easy, and what that means is that you have to try a lot these days to compete in a competitive environment, so having skills, and a flexible mindset is key for your success.