I visited Dunster Castle last summer and spotted an easy way to make some smart shelves. I thought it might be of interest. This is a general view of the room, showing how the shelves are nicely fitted around the corners:
But in this close-up you can see that structurally it's as simple as stacking floorboards onto bricks:
The boards are continuous and the uprights are separate blocks.
Of course, you could make these as elaborate or as simple as you like. Plain square edges or moulded to taste. The blocks could be solid or hollow. I expect that they have at least a dowel to sit in a hole to keep them positioned properly but wasn't able to check . (A simple screw down through the shelf into the upright would work ok - the last screw would be on the top shelf and out of sight.)
It would also lend itself to batch production and might make a commercial product quite readily.
But in this close-up you can see that structurally it's as simple as stacking floorboards onto bricks:
The boards are continuous and the uprights are separate blocks.
Of course, you could make these as elaborate or as simple as you like. Plain square edges or moulded to taste. The blocks could be solid or hollow. I expect that they have at least a dowel to sit in a hole to keep them positioned properly but wasn't able to check . (A simple screw down through the shelf into the upright would work ok - the last screw would be on the top shelf and out of sight.)
It would also lend itself to batch production and might make a commercial product quite readily.