Hanging stitches that loop back up

i recently saw in a book which i cannot find a stitch where there were yarn stitches hanging down and coming back up in a loop. i don’t remember the name of the stitch but if anyone could provide a picture and instructions i would greatly appreciate it.
thank you.

Loop stitch?

I believe Amy has video in the Advanced Techiques section, too.

what is the “b” in your pattern?

According to that site, the ‘b’ is knit through back loop.