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Being able to show charts and documents in plain text is a great way to keep track of your material and make it easy for others to understand what you're talking about. <a href="https://recorderchartsandpens.com/pens/">Chart recorder pens</a> are a good choice because they allow you to mark up any paper using only vertical lines and circles. Chart recorder pens are a must-have when you need to chart your moods, work out your goals and make plans for the future.