Document and photo transfer

Question

How do I transfer Windows documents and photos from an external hard drive to the proper corresponding folders and locations on my iMac?

Answer 1

Sorry, I had a typo in that sentence - I meant "on the left" (ie, the window which has your external hard drive displayed), and then I mentioned the keyboard shortcut "cmd-A".
There are lots of keyboard shortcuts which will come in useful for you. You've probably used similar shortcuts on the PC - on the Mac, we tend to use the command key ("cmd") which is immediately to the left or the right of the spacebar (both keys do the same thing; use whichever one you prefer). (In Windows, the "ctrl" key is used to do the same things.)
So, "cmd-A" means hold down the command key, and while you're holding it down, click the A key. This will select everything in the current Finder window - so, if you have a folder of files open, clicking cmd-A will select all the files.
Once it's all selected, click the mouse down anywhere in the blue selected area, and drag into the second Finder window.
You can use the Edit - Select All menu if you prefer, but keyboard shortcuts are usually more efficient.
best
Matt