In one sentence, describe what the following article is about:

The Gregg shorthand method is phonetic, so it follows the sound of words, rather than the spelling of words. It uses hooks and circles as symbols for words. Like the Pitman method, it has a separate set of symbols for consonants and vowels. You can find the Gregg shorthand alphabet here: http://www.omniglot.com/writing/shorthand.htm. Each consonant is represented by a hook that is a different shape and length. Some consonants, like “n” or “m,” are straight vertical lines. Other consonants, like “f” or “v,” are more horizontal and curved. Study each consonant to ensure you are writing it correctly. In some cases, multiple consonants are represented with one symbol based on the sound of the word, such as the sound “n-d” in “and” or “m-n” in “men.” The Gregg method uses circles of different sizes to notate the vowel sounds in words. Common vowels like “a” are represented by a large circle, while vowels like “e” are represented by a smaller circle. Make sure you notate vowel sounds correctly with circles, rather than just how the vowel appears written in the word. For example, the vowel sound “oo” is represented by an open circle at the bottom. The vowel sound “ea” is represented by a circle with a dot in the center. Punctuation marks like a period, a question mark, and a hyphen are represented by different symbols in Gregg shorthand. The symbol for the punctuation mark should appear above the bottom line of the page.  For example, a period is represented by a small dash and a question mark is represented by a small “x.” A complete list of shorthand for punctuation marks can be found here: http://www.omniglot.com/writing/shorthand.htm.

Summary:
Look at the Gregg shorthand alphabet. Use the correct shape and length for the consonant symbols. Represent vowels with circles. Use the proper punctuation marks in Gregg shorthand.