Listening book series of one author is very useful. It calls narrow reading (in this case "narrow listening"). Authors often use same words and phrases many times.
For beginner level adults, it’s hard to find something easy and interesting at the same time. The Wonderful Wizard of OZ series is good choice. Everybody knows story of the first book. But series consists of 14. And all books in series are interesting. Later series is getting even better, more like Alice in Wonderland (with childish humor that often mocks adult world in very funny ways).
For beginner English learners, it’s important to choose ascent for learning. It’s unwise from start learn English and American English both. Do your choice.
The app propose to learn American English ascent. Audioook was red by Phil Chenevert, American English speaking narrator.