This appears to be the beginning of an online tutorial on drawing bubble letter alphabet in Calligraphy Skills. Here's what I can gather from this snippet:

1. The title suggests that learning how to draw these letters will help you master various skills related to calligraphy.

2. The author has organized the tutorial by starting with simple letters and gradually moving towards more complex ones, which is a common approach for beginners in many skill-based tutorials.

3. It mentions grouping similar-looking or -structured letter forms together as another organizational method used within the tutorial.

4. There are also references to using images alongside text explanations of how each bubble letter should be drawn, suggesting that this could be an illustrated guide rather than just a written one.

5. The author stresses that these letters can bulge quite significantly because they're based on circular shapes being manipulated in various ways - hence the name 'bubble'!

with regards to why someone might want/need learn how to draw bubble letter alphabet, it seems there are few practical reasons given beyond saying 'they're fun'. however, some possible uses that come to mind include:

- decorative elements for signs

- doodling or drawing simple cartoons/patterns

- adding a playful touch to posters etc.

or even just as a creative activity in itself.

Cool happy birthday bubble letter