An IMO Publishing e-reader file is fully bookmarked, indexed and presented in ebk file format which is viewed using the free software "The IMO Bookshelf". The e-reader file is replica of the printed title. E-reader files are available for major titles in English. Once purchased, e-reader files are instantly accessible and locked to a specific computer. Please note that multi-user licences are available which benefit from a 50% discount when bought at point of purchase for the same site and same organization.