When someone comes to the prop shop looking for work, I look long and hard at their portfolio. It represents everything they can do (or SHOULD represent).
A dirty old crusty folder or case with dog-eared pages doesn't thrill me. The appliant had better show me some pretty spectacular stuff.
A perfect, custom-crafted portfolio case tells me that the applicant has too much time on their hands. Like, they haven't had much work and so were able to build a custom case for themselves. Not too encouraging.
A subdued, honest, straighforward, functional presentation folder is the best in my eyes. You aren't showing off the case, your'e showing off the work inside. And that work should be your best.
Don't try to jam the book full of everything you've created from DNA until now. Show me the ten best things you've done. You don't want to take up a bunch of their time showing things and telling stories. An interview should last no more than 1/2 hour. The conversation surrounding it might take longer, but when you're showing your book, it shouldn't be any more than 30 minutes. But rely on the cues from your potential employer. If they are asking questions, go with it.
And be prepared for questions like:
How long did this take you?
What client was this for?
Who hired you?
What materials did you use?
Was this all you, or did you work with others?
What part of this did you work on?
And never be desparaging about the work. NEVER say things like "That was a real bugger... I hope I never get called for that again." You need to present a positive attitude, so say things like "That was a challenge. But I think it came out well." Your potential employer will know what you're saying.
And always ALWAYS try as hard as possible to GET PICTURES of your work before it walks out the door. In some cases, you can use the photo ad or clips of the project on your video reel. But in case you don't have the opportunity to get final shots or a copy of the film, you should have taken images while it was being built or at least just before you deliver it to the client. That's how you fill a portfolio.
-Gordon