PB scoping toolkit
/This toolkit, developed by the US-based Participatory Budgeting Project, introduces PB by highlighting:
How a typical PB process works
The impacts of PB
What budgets can be used for PB
Staffing and other resources needed to implement PB
How to get started
Download it here.
They have information on various aspects of PB that's worth exploring. It's US-focused and you need to sign up to download their free materials.
There's more here.