Chart Maker

One item per line as 'Label, value' — like 'January, 120'. The split happens at the last comma, so labels can contain commas ('Portland, OR, 85' works). Up to 24 items chart cleanly; beyond that, consider grouping small categories into an 'Other' bucket, which is better practice anyway.

Bar for comparing categories (the default for a reason — human eyes judge lengths far better than angles). Line only when the x-axis has a natural order, usually time; a line through unordered categories implies a trend that doesn't exist. Pie only for parts of a whole with few slices — past 6–7 categories, angles become unreadable and a bar chart tells the truth better.

Slices under about 4% are too thin to hold legible text, so their labels move to the legend where they can actually be read. If your pie has many tiny slices, that's the chart telling you it's the wrong chart — group the small ones or switch to bars.

1200×700 PNG regardless of how small the preview looks — crisp at full-slide size in PowerPoint, Google Slides, and documents. PNG keeps text edges sharp where JPG would fuzz them. If you need other dimensions, most slide tools scale a 1200px image down cleanly; scaling up is what to avoid.