There are many different forms of professional portfolios that a teacher can choose from that are an expression of the teacher’s philosophy and teaching style.  Professional portfolios do not really follow any set pattern, however many of them do have similarities in the information they can convey to anyone who may by looking over the portfolio.  The key to making an effective portfolio, I think, is to take the person, or people, who may be looking at the portfolio into account, and make sure that the information is easily understood, clearly presented, and relevant to the situation at hand.  
Of the portfolios that I looked at, I think that I will want to include a section about myself, such as the Meet the Author section of the portfolio by Pam Lowe.  I also liked the visual aspect that she and a few others incorporated into their portfolios.  Lastly, I liked how many of the portfolios were a reflection of the teacher’s personality instead of just a rigid format that did not reflect on the teacher’s philosophy or teaching style.  I believe that these 3 elements will allow me to convey my teaching style to anyone who views my portfolio, whether that person is a fellow educator, a potential employer, or one of my student’s parents.