part-work 
noun British
A publication appearing in several parts over a period of time.And yet good technology advice isn't hard to find: news stand magazines and part-works offer lucid explanations, most newspapers feature weekly PC advice columns, and much more information is only two clicks away on the internet....
- For those who've been living in a cave in the desert for the last twenty years, part-works are the magazines coming in like 50 parts, courses on cross-stitch, painters, collectible bird statues, you name it, you can get a part-work on it.
- An acquaintance who worked for a publisher asked for some pictures to illustrate a series of part-works, beginning with The Story of Pop.
