The BBC Editorial Guidelines
The BBC Editorial Guidelines outline the standards the BBC expects of all BBC content on TV, radio and online.
They are designed for everyone who makes content for the BBC, to help them deal with difficult editorial decisions. http://www.bbc.co.uk/editorialguidelines/guidelines/
Associated Press Style Guidelines
Summarized by Professor Jack Gillespie, Rowan University, Ret.
The Verification Handbook
A definitive guide to verifying digital content for emergency coverage, a groundbreaking new resource for journalists and aid responders, which provides step-by-step guidelines for using user-generated content (UGC) during emergencies. http://verificationhandbook.com/book
In most photo captions the first sentence identifies the people and place in the photograph and supply the date and location where it was taken. The second (and perhaps third) sentence should provide contextual information to help readers understand what they are looking at. https://ijnet.org/en/blog/writing-photo-captions