I taught students with reading & writing workshop for four years in New York City public schools. Four years might not seem like a lot, but by the end of my tenure I was ranked in the 98th percentile of NYC teachers in terms of raising test scores.
I created this straight-forward presentation for a PD in which I introduced reading workshop to teachers at my new school in Spain who had never heard of the workshop model. This PowerPoint would work very well as a PD, and it's self-explanatory enough that you could just send it to other teachers at your school. It has a number of strategies to get a teacher, new or experienced, on their way to being a successful teacher in a balanced, workshop environment.
If you like it, the Writer's Workshop one I did is even more helpful (http://www.teacherspayteachers.com/Product/Starting-the-Writers-Workshop-501077)...and feel free to browse my other items! Obviously they're not locked like this one is :)