First, learn how to use your camera or cell phone to take still life photos. Photos of pots are done at close range and present unique challenges. For instance, I've found that some of my photos of pots will be distorted if I hold the camera too close to them. It's the same principle that makes your nose look too big if you hold the camera close to your face. In situations like this, I hold the camera a little farther away and use the zoom to get closer. You don't need a tripod since most cameras compensate for minor shaking, but you do need to adjust the settings for different types of light such as fluorescent, tungsten, or natural sunlight. Explanations for how to do any of these things should be in your manual or online in one form or another.
Second, learn how to stage a photo. I'm still too lazy to work hard enough on this, so I know this is an area I need to work on. The photos of pots on this website are all taken on my kitchen table which doesn't communicate much about them. There are quite a few people on Etsy who are skillful at presenting their pieces in settings that show how they might enhance the beauty of someone's home. Some of the best photos of my pots are from collectors who take them home, fill them with flowers, and send me images. One of the best I've seen was someone who took a photo of her breakfast the morning after my sale. My bowl was filled with a beautiful salad and my cup was filled with a fresh green smoothie. It's also important to know how to take photos using a background. I don't have a lightbox but I do use a Flotone Graduated Background (white at bottom to black at top; 31" x 43") which I purchased from Amazon for less than $50. Photos using these backgrounds look like the sort of thing you see in museum catalogs. You can get many types of backgrounds with many different colors or even just white; I just happen to like white to black. These can be in vinyl or paper and are easily marred by dirt or scratching. I always brush off the bottom of a pot with a soft brush before photographing it, and I always brush off the background before putting a new pot on it. Even so, it still gets a little dirty and scratched, but I've never had anything show up in my photos since the next pots always sit where the other pots were sitting. I've used photos with a background like this for submissions to juried exhibitions and when alerting buyers what types of pots were going to be available at an upcoming sale. If you want a few examples of what my photos with a background look like, check out the blog below from April before my spring sale. All of the photos were taken at my garage using the Flotone Graduated Background that I attached to the back of a chair using plastic clips and held down on the table at the corners using books. Everything was set up on a table next to the entrance of the garage, and the garage door was open to the right. You can see how this created shadows that went to the left, but that's okay since indirect sunlight is great at reproducing colors that are closer to what our eyes see. This was better than what I was getting with the garage door closed. Even adjusting for fluorescent light, all of the whites were turning out yellowy.
Third, learn how to adjust photos after they're taken. Most photos don't look that great straight out of the camera. I've never used Photo Shop, but I use the software that Canon supplied with my camera. It's important to know how to make adjustments to photos, not to make them look better than they really are, but to correct flaws in the original image.
Fourth, learn how to use good photos to attract the attention of collectors. This website has hundreds of photos of my pots and a few thousand people a week look at them. Before sales, I send photos of about 20 pots to my mailing list so collectors know what sorts of things I'll be offering. One of the most important ways to use images is through Instagram. Even if the images aren't great, they can let collectors know what sorts of things are coming out of your kiln and will be available for sale.
These are a few suggestions about how to take better photos of your pots and what to do with them once you have them. Please let me know what you've done that's worked for you.