How do you remember what you learn? Using a Personal Knowledge Management (PKM) system can help. A PKM system is a set of tools and processes that help you capture, organize, and review notes and information.
You create a second brain. Whenever you need notes on this or that subject, they are easily available.
So, what tools should be in your system? You need to solve for 3 steps.
1️⃣ Capture. How do you capture your notes & highlights? Your main capture tool will be based around how you consume content. For many readers today, @AmazonKindle is the best capture tool as it lets you easily highlight books, add notes, and export these out of Kindle.
Beyond books, "read it later" tools help you capture your blogs & newsletters. @matter is my tool of choice.
2️⃣ Organize. Your main organization tool will be your notes app. Examples are @evernote, @RoamResearch, and @NotionHQ. You will import notes from other sources into your notes app, organize them, and summarize key takeaways. You can also capture directly into your notes.
3️⃣ Research & Review. Your notes app is once again the main tool here. If you organize correctly, it should be easy to find the content that is relevant to you.
Additionally, you can use a tool that helps automate your review process like @readwise which intelligently sends you quotes, highlights, and notes to review every day!