The book Heroes 3 Grammar is part of the teaching series Heroes by Oxford publications.
The Heroes English learning series is an exciting series specially written for Greek students, with rich auxiliary material in print and digital form. The teaching series is aimed at children and consists of 3 levels (Heroes 1, Heroes 2, Heroes 3). The main features of the Heroes series are analyzed below:

• Interesting stories that motivate students to read and learn English
• Memorable characters involved in various adventures
• All the necessary grammar for the corresponding levels
• Integrated exercises
• Songs for more enjoyable grammar learning
• Graded grammar exercises
• Games and further language practice
• A Multi-ROM for additional practice included in each student's book