https://medium.com/@antunesleo/getting-started-with-elasticsearch-index-document-first-queries-bc1a00317066 > In this second article in elasticsearch series, we will have a look in some implementations related to index and documents! (and some queries because I know you want to do this!). > I wrote an article about the elasticsearch concepts, including index and document. You should read it if you are not familiar with this concepts.