This document is an introduction to a textbook for 10th grade students learning English as a foreign language. It provides an overview of the textbook's contents and guidance on how to use it effectively. The textbook contains 8 units covering topics from the curriculum, with each unit divided into lessons. It aims to develop students' listening, reading, speaking and writing skills through various exercises. Students are encouraged to set learning goals and work on projects to practice communicating in English. The introduction explains that mastering a foreign language can open many opportunities and help students become global citizens.