Complex sentence: The decision did not have the support of the book's authors and was criticised by some who claimed it was incompatible with freedom of speech and with freedom of the press and that it indicated that English libel laws were excessively strict.
Split into simpler sentences: The decision did not have the support of the book's authors. CUP was criticized by some who claimed its action was incompatible with freedom of speech and with freedom of the press and that it indicated that English libel laws were excessively strict.