I must’ve read hundreds of pages documentation and some of it is not easy to find. I won’t explain what each of them does in this post as this will come later. I’ll add new documents to this post as I find them.
Note these links may not be up to date! Check the official sources for the official version and the latest information.
COMMISSION IMPLEMENTING REGULATION (EU) 2019/947 of 24 May 2019 on the rules and procedures for the operation of unmanned aircraft
https://eur-lex.europa.eu/eli/reg_impl/2019/947/oj
COMMISSION DELEGATED REGULATION (EU) 2019/945 of 12 March 2019 on unmanned aircraft systems and on third-country operators of unmanned aircraft systems
https://eur-lex.europa.eu/eli/reg_del/2019/945/oj
Acceptable Means of Compliance (AMC) and Guidance Material (GM) to Commission Implementing Regulation (EU) 2019-947 - Issue 1
https://www.easa.europa.eu/acceptable-means-compliance-and-guidance-material-group/amc-gm-implementing-regulation-eu-2019947
Acceptable Means of Compliance (AMC) and Guidance Material to Part-UAS — Issue 1
https://www.easa.europa.eu/acceptable-means-compliance-and-guidance-material-group/amc-gm-part-uas
Opinion 05/2019 Standard scenarios for UAS operations in the ‘specific’ category
https://www.easa.europa.eu/document-library/opinions/opinion-052019
Easy Access Rules for Unmanned Aircraft Systems (Regulation (EU) 2019/947 and Regulation (EU) 2019/945)
https://www.easa.europa.eu/document-library/general-publications/easy-access-rules-unmanned-aircraft-systems-regulation-eu
Opinion 01/2020 High-level regulatory framework for the U-space
https://www.easa.europa.eu/document-library/opinions/opinion-012020
CAP1789: The EU UAS Regulation Package – Outline
https://publicapps.caa.co.uk/modalapplication.aspx?appid=11&mode=detail&id=9135
CAP 393: The Air Navigation Order 2016 and Regulations
https://publicapps.caa.co.uk/modalapplication.aspx?catid=1&pagetype=65&appid=11&mode=detail&id=7523
The Air Navigation Order 2016
PDF (not this does not include any ammendments)
http://www.legislation.gov.uk/uksi/2016/765/contents
Small Print: These posts are a summary only, include my personal interpretation and is not intended to be a replacement for reading the actual rules.