PennyRange Sheets
Authors and editorial method
A workbook’s purpose, assumptions and actual cells should determine the guide—not the other way around.
Mara Ellison and Evan Calder are editorial pen names, not verified personal identities. Their portraits are illustrative editorial avatars. These bylines do not imply professional credentials or a separate human review.
From workbook to instructions
The editorial process starts with the task and the finished workbook. Instructions should identify the input cells, explain the calculation, work through an example and show the limits. AI-assisted preparation is part of this process; an author byline is not a claim that a named person independently reviewed the file.
Validation includes recalculation, changing an input and checking the resulting output. Those checks are useful but do not make every use case safe or establish compliance with financial rules. If the workbook changes, its examples and instructions must be checked against that version.
Sources and assumptions
US rules should be supported by relevant official sources, such as the IRS, Consumer Financial Protection Bureau, Federal Student Aid or SEC. A guide should distinguish those rules from a user-entered estimate. Federal guidance does not automatically settle state rules, plan terms or your individual circumstances.
Corrections
If a formula, instruction or label appears wrong, send the page URL, worksheet, cell and a short description of the expected result through Contact. Use made-up example values, not account statements or identifying financial details. A report does not need to include your workbook.
Keep a copy of the version you used. If an error affects a decision, verify that decision independently rather than waiting for a site correction. We do not promise a response time or ongoing monitoring of your records.
About the editorial portraits
The photographs are licensed stock images used as illustrative avatars for these pen names. The people pictured are not presented as the authors, employees or endorsers of PennyRange Sheets.
Portrait photography: Shopify Photos via Burst (Mara avatar) and Shopify Partners via Burst (Evan avatar). The photographs are separate from the workbook content and are not offered for resale.
