We need to break inheritance on a document library. Some users of a site should have read only to document library 1 while some users should have contributor rights to document library 2 (both within the same site). If we break inheritance on these libraries, will there be any effect on the items contained within? I read from an MVP blog that breaking inheritance at the library level will indirectly break inheritance on all item as well. Is this true? Hopefully this in not the case as i have read that item level security should be avoided at all costs. Any help would be appreciated.