Well, because of still any facebook user who still doesn't know much about how to make a private photo on facebook, today I'll tell you the secret on facebook about how to make a private photo on facebook. Please, pay attention to each steps bellow:
- Login to your facebook acount.
- Then, go to your profile and click photo menu. see the sample picture bellow:

- Click "Album Privacy", see the sample picture bellow:

- After that, decide your photo album that you want to make private and select the privacy option.
- On the friends option, just select just me, while on network option select no network.

- The last step, click save setting.