- Your website.
- Social media.
- Physical mail such as postcards.
We all know this, yet it's hard to get good advice. I am no expert, so I'm merely passing along what I've learned from scouring the internet and talking to professional photographers. So, consider this post a quick source for where to find some useful information, via the following links:
In the photo at the top of this post, you can see how I followed the advice. I bought two Neewer softboxes from Amazon (https://www.amazon.com/gp/product/B017D7W57S/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1) which cost $90. They were well worth the price: very bright daylight-style bulbs, can go up to 7 feet high, and they have an opaque covering over the front to diffuse the light.
Then I set up the lights at either side, at an angle of roughly 45 degrees. Some of my paintings are very reflective, so I adjusted the position of the lights as necessary, until it reduced the glare on the surface of the painting.
I have a digital SLR camera, but it's nearly 10 years old, so in the end my Galaxy S10 phone had a better camera. AS you can see in the above photo, I also have a ring light with a camera holder at the centre. This meant I could fix the camera-phone in position, set the camera to shoot on a timer, then step away to reduce any camera shake.
Result: good, high quality photos which I am already using to update my website and to put together an online exhibition.
Finally, here is a setup I used to shoot some ceramic sculptures: