read “外資系1年目のための英語の教科書”

I read 外資系1年目のための英語の教科書 to learn communication style in English more to improve my English skill. I’ve worked in English environment for over three years, but I would have liked to focus on communication style. It means how to say a situation in formal or informal.

My first thought after reading this book was I know of, or I already practiced almost tips, especially recent 1 and a half years. But I have a few experiences to use formal English. So, some situations in the book told me useful insights.