AI
How Do AI Detectors Work? Perplexity, Classifiers, and Limits
A clear explanation of how AI detectors analyze text: predictability, sentence variation, trained classifiers, and why their results are probabilities.
The ZeroTell Blog
Practical guides for clearer writing, honest use of AI and emails that get answered.
Latest articles
AI
How Do Plagiarism Checkers Work? Matching, Databases, and Reports
How plagiarism checkers break text into fingerprints, compare it with web pages and papers, and build a similarity report you can actually interpret.
AI
How Does an AI Humanizer Work? A Plain-English Explanation
What an AI humanizer actually changes in your text, why AI writing sounds robotic, and how to use a humanizer honestly as an editing aid.
Emails
How to Ask for a Reference in an Email (5 Samples & Templates)
How to ask a manager, professor, colleague or client to be your reference by email, what to include, and five sample requests you can adapt.
Emails
How to Ask for Feedback in an Email (5 Samples & Templates)
How to ask managers, colleagues, clients and customers for useful feedback by email, with specific questions, good timing, and five sample emails.
Writing
How to Avoid Plagiarism: 9 Habits That Actually Work
Practical habits for avoiding plagiarism: tracking sources, quoting and paraphrasing correctly, citing as you write, and using AI tools honestly.
Writing
How to Build an Academic Outline in 15 Minutes with AI
A timed, step-by-step method for turning an assignment prompt into a solid essay outline with AI help, while keeping the argument and the writing your own.
Writing
How to Check for Plagiarism: A Step-by-Step Guide
How to check an essay or article for plagiarism, read a similarity report correctly, and fix real problems with quotes, citations and paraphrasing.
AI
How to Check if Content Is AI-Generated: A Practical Method
A step-by-step method for checking AI-generated content: read for warning signs, verify facts, use a detector wisely, and weigh context before deciding.
Writing
How to Cite a Lecture in APA, MLA and Chicago
Cite a live lecture, lecture notes, slides or a recorded lecture in APA 7, MLA 9 and Chicago, with reference formats, in-text citations and fictional examples.
Writing
How to Cite a PDF in APA, MLA and Chicago
A PDF is a file format, not a source type. Learn how to identify what your PDF really is, then cite it correctly in APA 7, MLA 9 and Chicago with examples.
Writing
How to Cite a Poem in MLA, APA and Chicago (With Line Numbers)
How to cite and quote poems in MLA 9, APA 7 and Chicago: works-cited entries, line numbers, slashes for line breaks, block quotes and poems found online.