How to use a different wallpaper on each monitor
Set a separate image per screen, or stretch one panorama across all of them, on Windows and macOS.
Journal
Practical guides to screens and wallpapers, notes on the natural world, and plain-language explanations of open licensing.
Do dark wallpapers really save battery on OLED screens?
Why black pixels cost almost nothing on OLED displays, why it makes no difference on LCD, and how much it matters in practice.
Why NASA images are free to use, and the few exceptions
US government works are in the public domain, which is why NASA photography is everywhere. Here is what that covers and what it does not.
Snow leopards: why the “ghost of the mountains” is so rarely seen
Camouflage, thin air and vast territories make the snow leopard one of the hardest big cats to photograph. Here is what makes it so elusive.
Golden hour and blue hour: the light behind great landscape wallpapers
Why so many of the best landscape photographs are taken just after sunrise or just after sunset, and why that light suits a screen so well.
How to choose a lock screen wallpaper that keeps your clock readable
A few simple rules about subject placement, contrast and calm space that make any photograph work on a phone lock screen.
Masterpieces for everyone: how museums opened their collections
The Met, the Cleveland Museum of Art and Denmark’s SMK have released public-domain artworks for anyone to use. Here is why, and what it means.
Orcas: the ocean dolphins with families, dialects and cultures
Killer whales are the largest dolphins on Earth. They live in tight family groups, speak in pod-specific dialects and have regional hunting traditions.
Public domain, CC0 and CC BY: what the labels actually let you do
A plain-language guide to the open licences behind every wallpaper on this site, and how to give credit properly.
How to choose the right wallpaper resolution for any screen
Native resolution, aspect ratio and scaling explained, so your wallpaper looks sharp instead of soft or stretched.