Solid state fermentation technology (SSF) has become quite a popular choice in bioprocess systems as compared to the conventional submerged fermentation in a wide range of commercial processes and technologies. This book focuses on various aspects of application and future prospects of SSF in the production of various enzymes, secondary metabolites, pharmaceutically important proteins and various other products. SSF also proved itself to be a more economical approach as it enhances repeatability, requires use of less sophisticated machinery, saves a lot of electricity and most importantly, it doesn't utilize huge amount of water in comparison to submerged fermentation. In the book, the articles have been included which discuss about the overview and general aspects of SSF with reference to lipase production, amylase production, in fermentation and food processing. A few articles have been included which discuss about the specific processes in depth like production of phytase by E.coli or pectinase by Rhizopus sp. and so on. Another interesting topic covered is use of cow dung, an inexpensive readily available substrate, to produce fibrolytic enzymes and alkaline proteases using SSF. I hope it will be insightful for the readers and help them explore the interesting aspects of this latest but popular technology in depth.