Grammage are the same weight paper having different cut size. However, a sheet of common copy paper that has a basis weight of does not have the same mass as the same size sheet of coarse paper (newsprint). In the former case, the standard ream is 500 sheets of paper, and in the latter, 500 sheets of paper. Here are some basic ream sizes for various types of paper. Units are inches except where noted. Sheets can be cut into four sheets, a standard for business stationery known conventionally as "letter sized paper". So, the ream became commonly used. The book-paper
T.B. Sheets T.B. Sheets "T.B. Sheets" is a blues-influenced song written and recorded by Northern Irish singer-lyricist Van Morrison, recorded for the Bang Records label in 1967 and included on his first solo album, "Blowin' Your Mind!". It later appeared on the Bang compilation, "T.B. Sheets". "T.B. Sheets" was recorded on 29 March 1967 at A & R Recording Studios In New York City with Bert Berns as producer. Morrison had intended to record it in one take, but there were two takes recorded that day. There is a long-standing, but perhaps apocryphal, story of Morrison's emotional state during the song's recording.