Is the arrangement of bookshelves so optimal for enchantment?

Is that the optimal arrangement and is it enough? It's only a block up. Do I still achieve the maximum enchantments?

Jo, it fits. The main thing is 15 bookshelves.

Look. If the highest level is 30 then yes.

Sorry, clicked. Yes, that's enough.

Okay thanks.

I'm in survival and first have to craft bookshelves that are expensive.

Thank you

Yes, but you can, if you are not always sure, always craft one by one and bet until the highest level is 30 in the enchantment table.

So you are always on the safe side.

In the picture but in the creative. ^^

I think that's just a test picture on another world or internet.

And by the way, you need at least 15 bookshelves to get the maximum level. Everything about it is decoration.

Yes, that was just a sample picture from the Internet. I will pay attention to the levels.

I know. ^^ Didn't know it exactly, that's why I wrote it in my answer.