Back issues of magazines can be found through the publisher or through online sellers such as eBay or magazine warehouses. If the back issue of interest is a collector's item, antiquities and books dealers may be a better resource.
The first step in efficient back issue magazine hunting is to determine exactly what you need and why. If you collect a certain magazine for celebrity memorabilia, recipes, or as a hobby, online sellers would be the best source. If you need to locate an article or a portion of a magazine, it is possible to find the individual element online through a library resource. A long-term and a more hands-on approach could entail visits to flea markets and estate auctions. The availability of back issues of a magazine is generally determined by its initial popularity. The more subscribers, the better the chances of locating the issue of interest.