An obscene number of photographs from the same session with the same person or from the same shoot.
yeah, I'm guilty too
When we're really honest with ourselves - only a couple of them are any good. Sure, the pose varies by a few millimeters here and there and so does the smile or the sexy-face, but only three of those pictures really nail it. The rest are just similar-ish filler to make it look like you put a lot of work into the shoot.
I am here to tell you that you are not doing yourself a favor by posting 50 images from the same session. You are actually hurting your brand as a photographer. I don't care if you're a "professional" or an amateur who just enjoys photography. If you aren't editing your final selections tightly enough, you're telling everyone who sees your photographs that your standards are so low that any photograph you take is good enough to represent you to the world.
This simply isn't true.
We all take crappy pictures. Most of us take a "lot" of crappy pictures. One of the defining traits of a true professional is unrelentingly high standards. You must hold yourself to a standard well above what your clients (and friends and family) expect of you. If the image isn't just right, it should not be out there, representing you to the world.
Light not perfect? Don't have the time to do the skin softening that the model needs? Missed focus by just a little? Underexposed? Sloppy composition?
Do not post that picture! Don't put it on Facebook. Don't put it on your blog. Don't do it!
Wait until you have the time to fix it or to re-shoot the concept. Wait until you can do justice to the image and to your vision. Hold yourself to that standard.
If you choose to put these crappy pictures out there, I assume that you don't believe in yourself, that you don't care, and that you prefer quantity over quality. I'm not the only one making those assumptions. Has your client dealt with other photographers in the past? Are your fellow photographers seeing your work? Do you have an ask into any potential clients?
Hold yourself to a higher standard. Only edit the pictures with great potential. Only post the best of the best and your viewers will assume that you *are* the best of the best.