i'm currently designing a book cover and try to find a possibility to produce a golden square like in the picture, with text on it. I think in the picture they used a sticker. How can I achieve this Print effect, with a hot foil stamping in gold and the text basic in black without finishing?
There are printable foils out there, but it requires a special ink usually.
However, if hot foil stamping is an option, you could have the printer foil stamp the gold block, then come back and use a black pigment foil to foil stamp the words. Make sure you check with them that none of the text is too small for a die.