The website for the entire NAACP https://www.naacp.org/ organization provides a wealth of information about its history, governance, and activities.
A comprehensive summary of the origins and early days of the NAACP can be found at https://www.naacp.org/nations-premier-civil-rights-organization/
W.E.B. Dubois was the first editor of the NAACP’s magazine, The Crisis https://www.thecrisismagazine.com/
The National Office provides bylaws https://www.naacp.org/wp-content/uploads/2019/10/Bylaws-for-Units-Revised-Effective-March-2019-FINAL.pdf to guide the work of the units.
NAACP branches are organized into regions. Our branch is part of the New England Area Conference (NEAC) The Conference hosts regular meetings to facilitate communication between units, keep the branches informed about important issues, and to provide support to the units. The President of NEAC is Juan Cofield https://www.naacp.org/naacp-board-of-directors/juan-cofield/ who also serves on the National Board of Directors.