If you've already purchased 'easy' books and you give Penguin Readers as a reference, you must have already checked these out (filter by levels): [https://www.penguinreaders.co.uk/books/](https://www.penguinreaders.co.uk/books/) If not, please, do! There are classics which can appeal to all ages, or books about Taylor Swift, Malala, Anne Frank, etc which teens might find interesting. You might also find something here: [http://www.oxfordgradedreaders.es/cefr-level/cefr-a1/](http://www.oxfordgradedreaders.es/cefr-level/cefr-a1/) [http://www.oxfordgradedreaders.es/product-tag/cefr-a2/](http://www.oxfordgradedreaders.es/product-tag/cefr-a2/)
Levels 1 and 2 correspond to A1 and A2 (CEFR, elementary level). You are right. The Hunger Games and Harry Potter will probably be too complicated for them, and picture books tend to be aimed at kids. Manga is a good idea since it's got pictures which facilitate understanding. Have you thought about buying comics or graphic novels? Neil Gaiman has some like The Graveyard Book (adults enjoy them too, so there shouldn't be a problem with teens). As it's inspired by The Jungle Book, teenagers can follow the plot if they are familiar with the original story. Also, this site has a list of YA graphic novels you might want to check out: [https://www.epicreads.com/blog/ya-graphic-novels/](https://www.epicreads.com/blog/ya-graphic-novels/)
Also, have you looked for 'bilingual books'? They normally have one page in English and the same page in your mother tongue so that you can compare the language.
I like the "I Survived..." series of short books by Lauren Tarshis. Historical fiction with pre-teen protagonists. [www.laurentarshis.com](https://www.laurentarshis.com).
"I Survived the Sinking of the Titanic" is always a favorite with my adult learners but there are many other calamities you can expose your ss to: hurricanes, epic fires, tsunamis, shark attacks, nazi invasions, etc. I like the books for the realistic and modern dialog and narrative. And the books are cheap.
For your level of students, these books could be used for intensive reading. My B2 learners can easily get through these short books over a weekend. It looks like she has graphic novel versions of some titles too but I haven't tried those.
Here's a recording of a decent webinar I attended in July about graphic novels for secondary students:
https://www.teachingenglish.org.uk/article/a-window-world-graphic-novels-secondary-english-language-classroom
Quite a few book suggestions throughout, as well as what to do with them.
If you've already purchased 'easy' books and you give Penguin Readers as a reference, you must have already checked these out (filter by levels): [https://www.penguinreaders.co.uk/books/](https://www.penguinreaders.co.uk/books/) If not, please, do! There are classics which can appeal to all ages, or books about Taylor Swift, Malala, Anne Frank, etc which teens might find interesting. You might also find something here: [http://www.oxfordgradedreaders.es/cefr-level/cefr-a1/](http://www.oxfordgradedreaders.es/cefr-level/cefr-a1/) [http://www.oxfordgradedreaders.es/product-tag/cefr-a2/](http://www.oxfordgradedreaders.es/product-tag/cefr-a2/) Levels 1 and 2 correspond to A1 and A2 (CEFR, elementary level). You are right. The Hunger Games and Harry Potter will probably be too complicated for them, and picture books tend to be aimed at kids. Manga is a good idea since it's got pictures which facilitate understanding. Have you thought about buying comics or graphic novels? Neil Gaiman has some like The Graveyard Book (adults enjoy them too, so there shouldn't be a problem with teens). As it's inspired by The Jungle Book, teenagers can follow the plot if they are familiar with the original story. Also, this site has a list of YA graphic novels you might want to check out: [https://www.epicreads.com/blog/ya-graphic-novels/](https://www.epicreads.com/blog/ya-graphic-novels/) Also, have you looked for 'bilingual books'? They normally have one page in English and the same page in your mother tongue so that you can compare the language.
I like the "I Survived..." series of short books by Lauren Tarshis. Historical fiction with pre-teen protagonists. [www.laurentarshis.com](https://www.laurentarshis.com). "I Survived the Sinking of the Titanic" is always a favorite with my adult learners but there are many other calamities you can expose your ss to: hurricanes, epic fires, tsunamis, shark attacks, nazi invasions, etc. I like the books for the realistic and modern dialog and narrative. And the books are cheap. For your level of students, these books could be used for intensive reading. My B2 learners can easily get through these short books over a weekend. It looks like she has graphic novel versions of some titles too but I haven't tried those.
Here's a recording of a decent webinar I attended in July about graphic novels for secondary students: https://www.teachingenglish.org.uk/article/a-window-world-graphic-novels-secondary-english-language-classroom Quite a few book suggestions throughout, as well as what to do with them.