Cumulative Delta opens the price bar action to reveal who is actually controlling price — bulls or bears.  The CD chart is plotted in a candlestick formation, which makes reading the volume easier.  The TradersHelpDesk Directional Volume was built off of the cumulative delta concept, as well.

Using Cumulative Delta to Identify OTM Binary Option Entries

In this video, Gail Mercer, founder of TradersHelpDesk, shows how she uses this technique with the Directional Volume to identify OTM binary option entries.  While it may look easy to read cumulative delta volume analysis, it is considered an advanced skill and does take time to learn.  However, the advantage is that the trader can see the behind the scenes as price is building.