[dhimes]

Logo on the right of what? All I see is a geometric design in the middle of the cover. It doesn't look Arabic and it seems like it would be very cumbersome for someone to sign as a name.

[alsadi]

it's a known calligraphy style called kufi, just google it.

https://www.google.com/search?q=arabic+calligraphy+kufi&clie...

[dhimes]

Thank you.

[thunderbong]

The lines in blue in the cover image spell out the word

[atombender]

From another comment: http://www.kufic.info

[dhimes]

Thank you.

[gdy]

It's Iranian QR-code.

[alsadi]

No, kufi is named after a city in what is now Iraq not Iran.

https://en.m.wikipedia.org/wiki/Kufa

[gdy]

Yes, but it used to be in Persia.