command - /give @s minecraft:item_frame{EntityTag:{Invisible:1}}
I will show you how to make one way glass in Minecraft. Start by creating a regular map. Right-click to clear it and explore the entire area. Then lock this map using a glass panel on the cartography table. Press the 'Escape' key, turn on 'cheats,' and open the chat. Type the command from the description below to get an invisible item frame. Decide where you want your one-way wall. Place the invisible item frame on the glass and insert your map. Now, you can see through from the glass side, and on the other side, it looks like your map. This way, you can create a map art that will look like some kind of block.

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