The book focuses on various Industrial Applications of White rot fungi such as Biobleaching and deliginification of hard wood kraft pulp, Deinking of waste papers, Biological treatment of paper mill effluent, Decolourization of azo dyes, Decolourization of dye industry effluents and Xenobiotic degradation. It is written to meet the requirements of Research scholars and Post graduate students pursuing their research in the field of Biotechnology. It is written in a systematic manner with Introduction, Review of Literature, The present study, Materials and methods, Results, Discussion, Summary, Conclusion and recent references cited from various International journals.