How to remove scotch tape brown residue from album covers

My best success has been with a good single malt scotch......for me. 

3M makes a citrus-based adhesive remover that's just the ticket.  You might try WD-40, but it leaves an oily residue.

I’ve had great success with lighter fluid. Friend of mine who deals in vintage re rods turned me onto it.

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Essayer pour enlever les traces de colle, d'utiliser de l'essence F (Détachant Textile et dégraissant Métaux)

Ideally, lacquer thinner is the best solvent for that and it will dry out very quickly not leaving a stain. You can get a quart at Home Depot. You must wear gloves and be in a well ventilated area, preferably outside. Lacquer thinner is explosive like gasoline if the concentration gets too high but, you will have passed out before that happens. 
Brake cleaning fluid might also work but I would go with the Lacquer thinner. 3M makes an adhesive remover. All it is is lacquer thinner at twice the price.