[zāi lí huò zǎo]   

灾    梨    祸    枣    从前印书用梨木或枣木刻板。形容滥刻无用不好的书。

释 义：从前印书用梨木或枣木刻板。形容滥刻无用不好的书。

A book which is poorly written and not worth reading

灾难深重    灾梨祸枣