please i need help with creating an architectural portfolio. am a young architect seeking for a job at an architectural firm, and i need to present a portfolio as part of the requirements by the employer. i need to know;

1) what software can i use to create one.
2) what type of drawings am i to put in the portfolio?
3) and how do i finally design and present it.

will be very grateful for any assistance rendered. thanks alot in advance