Crochet thread has made a huge comeback the last few years. In times past it was much easier and faster to crochet or knit with worsted or sport weight yarn.

However many patterns are now designed for lightweight cotton crochet thread.  Wearables, home decor as well as edgings and traditional uses. It has the delicate lacy look and the cotton makes it more durable.

It can also be used for other crafts such as embroidery, scrapbook accents and quilting.

Keep in mind the higher the number of crochet thread the thinner it is. Standard size is number 10.  Size 30 is much thinner for tatting or very delicate crochet.  Hook sizes should be adjusted accordingly. However the smaller numbers of hooks make them smaller and vice versus.

If you are just beginning to use crochet thread these are things to keep in mind instead of learning the hard way.