Capitol Press - Finish work - Printing Essentials reference guide.

If the piece will fold or be bound, special formatting may be required to allow for creep, crossovers or proper margin allowance. Request a mock-up of the finished piece.
Selecting a "standard" folding style that can be done on conventional folding equipment helps to keep costs down.
Scoring is required prior to folding heavy stock or pieces that have heavy ink.
Embossing (or debossing) works best with soft, uncoated, cover stocks.
A blind emboss will be more pronounced than a printed emboss.
Foil enhances the emboss effect but you cannot emboss as deeply into foil as paper.
Foils handle differently than ink and may require adjustments to the font style or size.
If a foiled piece will be used for laser printing, testing is recommended to make sure the foil will not bubble or peel.
Steel rule dies are used to cut out fairly simple shapes. Intricate shapes may require a laser cut.

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