| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Welcome to Our World 2: Students Book: British English | 978-1-305-58311-5 | 2015 | Joan Shin Jill O'Sullivan |
| Welcome to Our World 3: British English | 978-1-305-58315-3 | 2015 | " |
| Welcome to Our World: Student Book 1 | 978-1-305-10527-0 | 2014 | " |
| Welcome to Our World: Student Book 1: American English | 978-1-285-87062-5 | 2014 | " |
| Welcome to Our World: Student Book 2 | 978-1-305-10528-7 | 2014 | " |
| Welcome to Our World: Student Book 2: American English | 978-1-285-87060-1 | 2014 | " |
| Welcome to Our World: Student Book 3 | 978-1-305-10529-4 | 2014 | " |