The Pocket Trainer series in English is aimed at self-learners and offers grammar, vocabulary, and language usage for practical and quick review and practice in a compact format. With these handy pocket trainers, English learners practice clearly defined language areas or learning topics based on everyday situations. All titles include an integrated answer key and can be used as independent study material or alongside any textbook. The Pocket Trainer on Letters, Emails, and Text Messages covers not only personal correspondence (invitations, congratulations, applications, etc.) and business correspondence (orders, complaints, reminders, etc.) but also modern forms of communication such as emails and SMS. Specific exercise formats like multiple-choice questions, matching exercises with text blocks, and fill-in-the-blank texts allow learners to practice these texts effectively.