Paper × 841 mm). A1 is half the size of a sheet of A0 (i.e., 594 mm × 841 mm), such that two sheets of A1 placed side by side are equal to one sheet of A0. A2 is half the size of a sheet of A1, and so forth. Common sizes used in the office and the home are A4 and A3 (A3 is the size of two A4 sheets). The density of paper ranges from for tissue paper to for some speciality paper. Printing paper is about . Paper may be classified into seven categories: Some paper types include:
How Many Clouds Can You See? How Many Clouds Can You See? How Many Clouds Can You See? is the second album by English saxophonist John Surman featuring Harry Beckett, Alan Skidmore, Barre Phillips and Tony Oxley recorded in 1970 and released on the Deram label. Allmusic awards the album 4 and a half stars and its review by Jason Ankeny states: "John Surman's second album remains his most impressive, anticipating the sound and scope of the European free jazz movement that would blossom in the decade to come". John Kelman in his All About Jazz review states: "While woodwind multi-instrumentalist John Surman's eponymous debut was