Read & Think French by McGrawHill education
I checked out a book called "Read & Think French" at the library and I find it very useful. The book provides a glossary right next to each article so that you don't have to bother looking up into the dictionary all the time. The articles are about culture, tradition, biography...etc. Each article is about one or two pages long so it is not overwhelming. I find it still a bit challenge for me but I think many Duolingo learners can benefit from this book. happy learning!