We are happy to announce that within Constellate, we have now tagged both JSTOR and Portico e-journal content with article types!  Say you want to do research on front-matter, its now possible to select just front-matter 'articles' in the Constellate data builder or filter them out in code you have written to work with our datasets (or, more realistically, exclude all those book reviews.)

You may read more about all these types and how to filter on them in our Help pages.