We asked our readers to send in their best pictures on the theme of "barriers". Here is a selection of the photographs we received from around the world.
Feldore McHugh
Feldore McHugh: "The barrier of a fence wasn't going to stop this little dog from seeing what was going on on the other side."
Mark Stubbs
Mark Stubbs: "I was out taking butterfly pictures at lunchtime, not far from Harwarden village (hottest place in Wales for the two consecutive days before)[, Flintshire]. Wow it was hot and the golden grasses, I could imagine a cattle drive out on the vast ranges of American western movies. But with a sun-bleached post and barbed wire so neutral, it seemed fitting to take it back to the time before grand colour movies."
Tony Dowell
Tony Dowell: "In the event, more of a gesture than a real barrier, but required careful negotiation before we proceeded."
Verna Evans
Verna Evans: "These barriers closing a road at Ham Common[, Richmond upon Thames,] are erected annually for toad safety when they are migrating to their breeding ground."
Oli Louch
Oli Louch: "Can't go over it, can't go under it… because my owner has to open it."
Kay Walker
Kay Walker: "Heading for The Shard, London, we noticed the workwear was coordinated with the barrier."
Ian Simmonds
Ian Simmonds: "These two North Yorkshire sheep seemed to want to use the stile when they could have just trotted round."
Philippe Roberge
Philippe Roberge: "A beautiful Scotland castle on the shore of a lake. This picture was shot in 35mm with a Nikon and I had the negative scanned so I could have a digital copy."
Tony McDonald
Tony McDonald: "During a recent holiday in Northumberland, my wife and I climbed the hill at Housesteads Roman fort, Vercovicium, to where the only part of Hadrian's Wall that you are allowed to walk on can be found."
Doris Enders
Doris Enders: "A clear message."
Nick Mills
Nick Mills: "A couple of years ago, our granddaughter was peering over a small wall in the village. She was soon joined by our two dogs. I never did spot what they were looking at."
David Woodcock
David Woodcock: "This calf having a good old scratch between two small trees. These cows roam free across Greenham Common[, Berkshire,] and are used as part of the natural land-maintenance programme."
Essam Higazi
Essam Higazi took this picture of the coastal barrier in Alexandria, Egypt.
Emily Renshaw
Emily Renshaw: "The fence is stopping Rita from reaching her snacks. Taken in Newquay, Cornwall."
The next theme is "my summer" and the deadline for entries is 30 August 2022.
Feldore McHugh
Mark Stubbs
Tony Dowell
Verna Evans
Oli Louch
Kay Walker
Ian Simmonds
Philippe Roberge
Tony McDonald
Doris Enders
Nick Mills
David Woodcock
Essam Higazi 
Emily Renshaw
