To add a gallery of images using the built-in WordPress gallery option, start a post from your Dashboard view as usual. From the right-hand “Format” widget, choose “Gallery” as the format and then use the “Add Media” button on top underneath the “Title” field.

Choose Gallery as format and choose add media

If you have previously uploaded your images, you are in luck and can simply select them. If not, use the “Media Upload” option tab in the upper left corner to choose the folder where you have images you wish to include in your gallery. Choose the folder and then use ctr-A on a PC or cmd-A on a Mac to select all the images in the folder.

You can choose multiple images at once.

While the images are uploading you can add the titles and captions to your images.

Add titles and captions to uploading images.

When the images are finished uploading choose “Create New Gallery”. If you see “Insert into post” look to the upper left-hand corner and make sure that “Create Gallery” is selected.

Make sure you have Create a New Gallery selected

Choose options for the gallery: Link to attachment page, choose how many columns you want and then choose “Insert gallery”.

Add any text and post as normal.