Level 1

Authors: Caroline Linse, Elly Schottman
Name Isbn
Hats On 1 Student Book Pack 9789708091794
Hats On 1 Activity Book 9789708091640
Hats On 1 Teacher's Edition Pack 9789706503961
Hats On 1 Big Book 9789708091886
Hats On 1 Count on Reading 9789708091671
Hats On 1 Class CD 9789708091848
Hats On Print and Play Resource CD 9786074730098

Level 2

Authors: Caroline Linse, Elly Schottman
Name Isbn
Hats On 2 Student Book Pack 9789708091800
Hats On 2 Activity Book 9789708091657
Hats On 2 Teacher's Edition Pack 9789706504388
Hats On 2 Big Book 9789708091893
Hats On 2 Count on Reading 9789708091688
Hats On 2 Class CD 9789708091855
Hats On Print and Play Resource CD 9786074730098

Level 3

Authors: Caroline Linse, Elly Schottman
Name Isbn
Hats On 3 Student's Book Pack 9789708091817
Hats On 3 Activity Book 9789708091664
Hats On 3 Teacher's Edition Pack 1120090200032
Hats On 3 Big Book 9789708091909
Hats On 3 Count on Reading 9786074730081
Hats On Print and Play Resource CD 9786074730098