“English in E-Commerce” course book has been created according to the CEFR for undergraduate students with B2 level of ESP classes in higher technical educational establishments that train future specialists in the sphere of electronic commerce. The book covers a wide range of topics on E-Commerce technologies including types of e-commerce models, trade and commerce, online shopping, internet service, email marketing, e-auction and web money. It presents and explains new words and grammar in context and shows learners how to use them. Easy to use and written in a clear style, this book will be invaluable for anyone needing to improve their E-Commerce vocabulary for work, home or study.