title_body: concatenate several files generated by send to kindle amazon plugin to consolidate multiple page documents
upvoted_answer: You can try GrabMyBooks.
  It can be used to grab webpages and create an ebook from them; I don't own a Kindle and I don't recall if it saves in formats other than ePub, but you can easily use Calibre to convert it if needed. You can send the ebook to your device then and read it like any other ebook.
  
  Another possible solution, if it integrates also with Kindle (it does with my Kobo), is to use Pocket.