Many times a pattern will instruct you to work into a chain space instead of into a particular stitch. A chain space is a "bridge" created by one or more chains.
|Pattern Abbreviation: ch sp|
The photos below show an example of a double crochet stitch being worked into a chain space.
||The photo shows an example of a chain space within crochet work.|
||To create a stitch within a chain space, insert the hook within the space, and create the appropriate stitch.|
||Photo shows a completed stitch within the chain space.|