is it possible to have multiple author and multiple publish instance?if it  is then how to implement it?

what is integration?how to integrate aem with third party?what is app server integration and how to use?what are other app server integration and how to do it?

how to set up these things in aem

Dev enviornment/tools(eclipse, logging, maven etc)

where is stored template policy and template type? Where is core component stored?where is project specific?what is stored in clientlibs?where is component level css stored?where is users stored?Where is editable template stored?What is stored in/conf/global/settings/workflow

where is editable templates stored?

what is stored in /conf/global/settings/workflow

what is app server integration? write steps to include integration.

please let me know about clientlib folder and workflow

write steps how to integrate AEM with any third party?