Emails
Thank You Letter to the Sponsor: 20 Examples
How to thank event, team, nonprofit and school sponsors so they want to return, with tips on reporting impact and 20 original sponsor thank-you letters.
The ZeroTell Blog
Practical guides for clearer writing, honest use of AI and emails that get answered.
Latest articles
Emails
Thank You Resignation Letter: 20 Examples
Resign gracefully with a letter that gives notice and says thank you. Structure, tone tips and 20 original resignation letters for different situations.
Writing
Thank-You Note Examples: 16 Short Notes for Every Occasion
Thank-you note examples for gifts, interviews, teachers, coworkers, hosts and hard times, plus a simple formula for writing your own in five minutes.
AI
Turnitin vs Grammarly: What Each Does and When to Use It
Turnitin checks submissions for institutions; Grammarly helps you write. Compare their purposes, plagiarism checks, AI features and how students use each.
AI
Turnitin vs QuillBot: Checker vs Paraphraser, Explained
Turnitin is a school's integrity checker; QuillBot is a paraphrasing and writing tool. See how they differ, how they interact and how to paraphrase honestly.
Writing
Types of Plagiarism: 12 Forms Explained With Examples
A practical taxonomy of plagiarism types, from verbatim copying to translation, data and collusion, with a short example and a fix for each one.
Writing
Types of Tone in Writing: 14 Tones With Examples
Tone is the attitude your writing conveys. Learn 14 common types of tone, see the same message rewritten in each, and pick the right one for your reader.
AI
Undetectable AI Writers Are a Trap: What to Use Instead
Tools that promise undetectable AI writing put your grades and reputation at risk. Here's why, and how to use AI as an honest writing assistant.
AI
What AI Detector Do Colleges Use? A Guide for Students
Most colleges that check for AI use Turnitin, with some instructors using GPTZero, Copyleaks or others. Here's how these checks work and how they're used.
AI
What Is Adversarial AI? Attacks, Examples and Defenses Explained
Adversarial AI is the practice of tricking machine learning models with crafted inputs. Learn the main attack types, real-world risks and practical defenses.
AI
What Is an AI Score? How to Read AI Detection Results
An AI score estimates how likely text is machine-generated. Learn what the number means, what it doesn't, why tools disagree and how to act on a result.
AI
What Is Claude AI? Anthropic's Assistant Explained
Claude is an AI assistant made by Anthropic. Learn what it can do, how it differs from other chatbots, how students and professionals use it and its limits.