^* Enter a list of search terms, separated by spaces, for example, "mountain fern" (without quotes) to search for photos with titles containing the words "mountain" and "fern". The search is not sensitive to case. Some suggested keywords: sunset, sunrise, tree, snow, water, ice, lake, mist, ridge, valley, pass, flower, and hiker.

Keywords behave as root words and match simple derivations of that root, for example, "mountain" matches "mountains" and "mountainous".

Technical note: The search matches keywords against each product's title and the product's keywords. Consider a product with the title "Mountain Fern" and keyword "foliage"; that product would match the query "foliage". We use product keywords in this manner to categorize the collection.