"Help students achieve success in editing for the ‘O’ Level examination paper, with detailed explanations to strengthen their understanding of grammar and the types of errors that may be found in texts. 

• Teach students to identify and correct errors in a wide range of passages of varying degrees of difficulty. 

• Deepen understanding of the most common errors and how to edit them with various types of errors listed and tips for tackling a passage, including a worked example in Part 1. 

• Ensure students master the skills to be able to identify and correct grammatical errors in a range of texts with progressive practice provided in 10 passages of basic, intermediate and advanced categories."