Lightning Source uses a high quality, acid-free, book-grade of opaque paper stock. Depending on your book size, books are printed on either a 55# natural shade opaque or 50# white. Paperback covers are printed on a bright white 90# cover stock. For more information, see our trim size matrix.
To download the latest paper specification:
1 Visit www.lightningsource.com.
2 LOGIN using your secure username and password.
3 Select ACCOUNT.
4 Select Operating MANUALS AND CONTRACT DOCUMENTS