1 The results of 2017 and 2018 have not been restated to reflect the change in accounting for the absorption of overheads to pre-publication costs as set out
in note 1.
2 IFRS16 (‘Leases’) have been adopted on a modified retrospective basis and accordingly the prior year has not been restated. The impact of this is disclosed
in note 1 of Notes to the Financial Statements.