I love his jaunty, mid-century illustration style. Sasek (1916-1980) was born in Prague and illustrated 18 books in the “This is…” series, children’s travel books. (The above image is from This is Paris.) A few of the books have been re-issued in the last few years. (I think they’d make great presents for the kids in your life!)
Via Book By Its Cover, the whimsical work of Miroslav Sasek.