A few days ago I dried herbs. Especially when I have a lot of herbs I use my dehydrator. My dehydrator has three layers, so I can dry different types of herbs at the same time. It's also possible to dry fruit and vegetables, but I haven't done that so far.
First you pick the herbs and take the leaves of the stems. At the same time you check if the herbs are clean. I always cut the leaves a bit smaller to speed up the drying process. Next you spread out the herbs on the wired racks (put a cotton cloth underneath). After about five to six hours the herbs are ready.