Plack Handbook: Plack and PSGI Development guide ebookPlack Handbook for Developers This little handbook is based on the content of the website Plack Advent Calendar. The calendar had 24 useful short posts explaining the concept of PSGI and tutorials how to adapt Plack to the existing web applications. The calendar was so successful and it's been considered a canonical reference for many beginners trying to learn Plack and also web framework authors
