Alternative text (alt text) is meant for readers who cannot see an image, such as blind readers and readers who use a text or mobile browser. It should summarize an image's purpose, and should not duplicate its caption. Every image should have alt text, except for purely decorative images, which should instead have "|alt=|link=".
The following table shows images and captions on the left, and alt text and captions on the right: the right column is what a visually impaired reader will hear. This table was computed from the copy of Christian worship cached on 18 May 2013 at 17:33.
| Image and thumbnail | Text description |
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Portal icon
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An altar (shown above) is a solid stone or wooden table used for the celebration of the Eucharist in some Christian worship rites
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Wiki letter w.svg
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Worship at a Byzantine Catholic altar
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[icon]
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Children at a Gospel presentation
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Children at a Gospel presentation
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A praise and worship team leading contemporary worship
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Unbalanced scales.svg
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Stained glass at St John's Ashfield, illustrating Jesus' description of himself, "I am the Good Shepherd", from the Gospel of John, chapter 10, verse 11.
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