The scientific guide, focused on "Teaching Speaking to EFL Learners at A1, A2, B1, and B2 Levels," provides a detailed examination of the methods, strategies, and techniques used to develop speaking skills in English as a Foreign Language (EFL) learners across various proficiency levels. It aims to guide educators in effectively teaching speaking skills, tailoring their approaches to meet the needs of learners at different stages of language acquisition. The work provides a comprehensive exploration of teaching speaking skills to EFL learners at various proficiency levels. It emphasizes the importance of tailored instruction, interactive activities, and continuous assessment in fostering effective communication skills. By employing the strategies and techniques discussed, educators can support learners in achieving greater fluency, accuracy, and confidence in their speaking abilities. The ultimate goal is to prepare learners for real-world interactions and equip them with the skills necessary for success in academic, professional, and social contexts.