Cover Paper:
Hard cover paper: 157gsm glossy/matte cover paper mounted on 2mm/2.5mm/3mm gray board, other options like linen, cloth, leather, kraft paper, etc. mounted on 2mm/2.5mm/3mm gray board.
Soft cover paper: Usually choose 200gms, 250gsm, 300gsm, 350gsm gloss or matt cover paper.
Inner Paper:
1) Art paper(coated paper): Gloss art paper and matte art paper.
Gloss art paper(paper stock): 80gsm, 105gsm, 128gsm, 157gsm, 200gsm.
Matt art paper(paper stock): 80gsm, 105gsm, 128gsm, 157gsm, 200gsm.
2) Offset paper(uncoated paper): 80gsm, 100gsm, 120gsm, 140gsm, 160gsm, 180gsm.
3) Special paper: texture paper, linen paper, parchment paper, tracing paper, waterproof paper, vinyl, cloth etc.Soft cover paper: Usually choose 200gms, 250gsm, 300gsm, 350gsm gloss or matt cover paper.