Russian Mastery (C1–C2) is an advanced self-paced eBook for learners who already speak Russian and want to refine their accuracy, range, and control to a near-native level. You'll learn to: Express complex ideas clearly and precisely in spoken and written Russian Master advanced grammar and stylistic nuance used by educated native speakers Argue, analyze, and explain opinions with confidence Understand demanding texts, discussions, and authentic materials What's inside: In-depth explanations focused on meaning, register, and usage Advanced vocabulary for professional, academic, and cultural contexts Realistic texts and dialogues drawn from authentic Russian Exercises in every unit + full answer keys By the end, you'll communicate with precision and confidence in high-level situations and have a strong C1–C2 command of Russian.