You can download all teacher's books for free here:

Interchange Intro

Interchange 1

Interchange 2

Interchange 3

This package includes all three levels of Join In:

Join in 1

Join in 2

Join in 3

Download all Headway 5th edition teacher's guides:

1- Headway Beginner Teacher's Guide, 5th edition - 2019, 232p.rar

2- Headway Elementary Teacher's Guide, 5th edition - 2019, 240p.rar

3- Headway Pre-Intermediate Teacher's Guide, 5th edition - 2019, 240p.rar

4- Headway-Intermediate-5th-edition-teachers-guidepdf-3-pdf-free.rar

5- Headway Upper-Intermediate Teacher's Guide, 5th edition - 2019, 240p.rar

6- Headway Advanced Teacher's Guide, 5th edition - 2019, 240p.rar

Download solutions 3rd teacjer’s books for free: Solution-3rd-Elementary-TB.pdf Solutions-3rd-Pre-Intermediate-TB.pdf Solutions-3rd-Intermediate-TB.pdf Solutions-3rd-Upper-Intermediate-TB.pdf Solutions-3rd-Advanced-TB.pdf(کتاب معلم به تازگی اضافه شده)