Can you help me understand these Photos basics?

1. Photos should create a new copy when importing by default. You can verify under Preferences for Photos.

2. When the File Browser dialog box pops up to select the image, you will find Photos under Media on the left hand sidebar which will allow you to select from your Photos library.

3. I personally think it is better suited for personal photos than web graphics, although it certainly capable. If you will continuously edit these photos with another tool, going through Photos might be a bit more troublesome.

 

I personally set Photos not to create a copy in the Library, I prefer to keep the original photos in the Pictures folder. This way I can still use all the functionality within Photos, but still have access to the image files. You could keep the original images files after importing to Photos, however you'll be using twice as much disk space.

I also prefer to backup the actual images files rather than Photo's library, this way I can access my photo's from my Windows machine if anything should happen to the Mac.

 

I can tell you that no matter how many times I delete photos on the mac....empty the trash ...they show up again over and over and over and over and over again.

 

It's great for organizing photos for any purpose, not just family images. Between Keywords and creating albums for specific purposes, projects, etc.... Although photography isn't my primary living, my images are widely published in books and on the web, in my company's publications. I have tens of thousands of images to keep track of, and a database management program (originally iPhoto, then Aperture, and now Photos) makes it very easy to do that.

Let's say you need to select images of Prague for a new web page. After locating images by Location and/or Keyword and/or from albums you previously created for your visits to the Czech Republic, you could create a new Album for "Prague web page" and drag in all candidates, without disturbing their original location(s). Photos makes it easy to share those picks with others who may be in on the decision, to winnow-out those that don't cut it... and you could create a second album (or add a Keyword) for those images that made the final cut, so that you have an additional record of what went into that page.

This is very space-efficient, as you don't have to make copies of the original images - the albums all link back to the same master and preview files. The same image can appear in many different albums (say, you might have made albums for Prague 2013, European Churches, Czech Street Scenes, Best Travel Shots...), you could have assigned dozens of Keywords to ease Searches... so many ways to organize and find your images.

 

It's fantastic for organizing and syncing across devices. Say you have Photos, you then sign into your iCloud account on a PC at work or somewhere else because you want to access these, and if Photo Library is enabled, they're all there for you to access under the security umbrella of iCloud. Is this similar to Dropbox and other drag-and-drop services? Yes, but it's streamlined and "baked in" deeper. Apple has not gotten enough credit for tightening relations between iOS and OS X devices.

As for where they all "live" natively, it's in this thingy here. Mine is in Pictures and if you go there you'll probably notice Photo Booth has one too. So although, yes, they are floating around in the cloud, when you import into the app, they all get stuck in this box here and wrapped up. The app itself is kind of like a window wherein you can then access and interact with what's in the box.

And yeah, I wouldn't litter it up with stuff like clipart or other work things unless - say you really needed this certain border or something, you need to edit it and maybe the app to do that is on iPhone. You could use AirDrop, but if you don't want to bother immediately or if your Mac is older and doesn't support AirDrop to iOS devices, you can make a folder with that art in it, forget about it, and then later when you're ready you can find it in Photos on your iPhone. Edit, save, and when you open Photos back up on the Mac or from iCloud via a PC, as I already went over, your edited version is there ready.

 

Yes. If you have a Finder window open and there's a folder with a lot of pictures, you can right click and send them all to Photos. Afterwards, editing or organizing in Photos is not going to affect the files in the Finder folder; sending them to the app merely copies them over.

 

Not necessarily. Go to Photos > Preferences > General: Importing - You can choose whether to copy to the library when Importing, or not.

 

That latter method is called having a referenced (as opposed to managed) library. Photos stores references to the image's location in the filesystem (sorta like storing a bunch of aliases), hence no duplication. But be aware there are some consequences to that, like use in iCloud Photo Library won't work IIRC with referenced images. And if you move them in the Finder, obviously Photos "loses" that reference and you'd have to manually connect 'em again. Also, the changes you might make to those referenced images are stored in Photos, not in the image itself, so you'd still need to export from Photos if you wanted to say export a cropped, BW version of that image.

 

Also, even if you do copy photos into Photos' library and then edit them, Photos (as iPhoto did) transparently retains the unmodified versions in the library regardless – you can restore them using Image > Revert To Original.