Crochet stitch and terminology summary (UK)

As a Brit, I will always use the UK terminology for all stitches.  In order to avoid any confusion with regards to which stitch I am refering, I decided to create a summary of the stitches used in my patterns:

• ch: chain
• slst: slip stitch 
• yo: yarn over
• yrh: yarn round hook

Basic stitches:

• dc: double crochet (US single crochet).  Insert hook, yo, draw hook through (2 loops on hook), yo, draw hook through both loops on hook (1 loop on hook)
• htc: half treble crochet.  Yrh, Insert hook, yo, draw hook through (3 loops on hook), yo, draw hook through all 3 loops on hook (1 loop on hook)
• tc: treble crochet.  Yrh, Insert hook, yo, draw hook through (3 loops on hook), yo, draw hook through 2 loops (2 loops on hook), yo, draw hook through both loops on hook (1 loop on hook)
• dtc: double treble crochet.  Yrh x 2, Insert hook, yo, draw hook through (4 loops on hook), yo, draw hook through 2 loops (3 loops on hook), yo, draw hook through 2 loops (2 loops on hook), yo, draw hook through both loops on hook (1 loop on hook)
• ttc: triple treble crochet.  Yrh x 3, Insert hook, yo, draw hook through (5 loops on hook), yo, draw hook through 2 loops (4 loops on hook), yo, draw hook through 2 loops (3 loops on hook), yo, draw hook through 2 loops (2 loops on hook) ,yo, draw hook through both loops on hook (1 loop on hook)

Increasing:

An increase of one stitch is achieved by working two stitches into one stitch from the previous row.  If increases are simply indicated by 'inc' I am assuming that the project is mainly constructed using one stitch type.


Decreasing:

A decrease of one stitch is achieved by working one stitch but stopping before the last yo.  The hook is then inserted into the next stitch and a second stitch worked until the last yo.  Yo and draw the hook throuh all remaining loops on hook.  If decreases are simply indicated by 'dec' I am assuming that the project is mainly constructed using one stitch type.  For clarity, I will always state the decrease type in the pattern.

• dc2tog: double crochet 2 together.  Insert hook, yo, draw hook through (2 loops on hook), insert hook into next stitch, yo, draw hook through (3 loops on hook), yo, draw hook through all three loops on hook (1 loop on hook)
• htc2tog: half treble crochet 2 together.  Yrh, Insert hook, yo, draw hook through (3 loops on hook), yo, yrh, insert hook, draw hook through (5 loops on hook), yo, draw hook through all 5 loops on hook (1 loop on hook)
• tc2tog: treble crochet 2 together .  Yrh, Insert hook, yo, draw hook through (3 loops on hook), yo, draw hook through 2 loops (2 loops on hook), yrh, Insert hook, yo, draw hook through (4 loops on hook), yo, draw hook through 2 loops (3 loops on hook), yo, draw hook through all 3 loops on hook (1 loop on hook)

Front and back post stitches

Front and back post stitches are worked around the post of stitches of the previous row/round instead of into the 'chain' at the top of the work.  Doing so pushes the top chain of the previous row to the back (in front post stitches) or front (in back post stitches).  Working rows of front or back post stitches can be used to create horizontal ribs.  The stitches are much the same as the basic stitches, so I will only describe fpdc and bpdc.

• fpdc: front post double crochet.  Insert hook into next stitch as per dc.  The hook will be at the back of the work. Insert the hook into the next stitch from the back of the work so that it emerges at the front of the work, yo, draw loop through (2 loops on hook), yo, draw hook through both loops on hook (1 loop on hook).
• bpdc: back post double crochet.  Insert hook into next stitch from the back of the work so that it emerges at the front of the work. Insert the hook into the next stitch from the front of the work so that it emerges at the back of the work, yo, draw loop through (2 loops on hook), yo, draw hook through both loops on hook (1 loop on hook).