Some different Jack Stalwart box sets are a box of all 14 books in the series, a box of 12 books, a box of ten books and a box of eight books. Any box of more than one book in the series is a box set.
The Jack Stalwart books are titled by area of the world where they take place. They include China, Kenya, Italy, France and others. A box set of the whole series is available. Box sets with selected books omitted are also available. For example, a box set is available on eBay, as of 2015, with Italy and Egypt left out. The choice of which books to leave out of an incomplete set is up to the seller.