The books shown in the pictures are a popular educational series for learning English known as "Life" from National Geographic Learning (Second Edition). They are designed to help students develop the four language skills (reading, writing, listening, and speaking) using real-world and global cultural content. Book Details: 1. First Book: Type: Workbook. Level: Elementary. Author: John Hughes. Content: Contains exercises and applications to reinforce elementary-level grammar and vocabulary with an audio CD. 2. Second Book: Type: Student's Book. Level: Elementary. Authors: John Hughes, Helen Stephenson, Paul Dummett. Content: The main book containing lessons, stories, and educational articles for the level. 3. Third Book: Type: Workbook with Key. Level: Pre-Intermediate. Author: John Hughes. Content: Dedicated to the slightly higher level (pre-intermediate), it contains exercise solutions at the end to help the student with self-review.