About PrepMaster Digital
PrepMaster Digital is an independent publisher of study guides for US certification and licensing exams: teacher certification, nursing and healthcare, counseling, public service, finance and more. PrepMaster Digital is operated by RBC Publishing & Consulting, 1309 Coffen Ave Ste 1200, Sheridan, WY 82801, USA.
What we publish
Every guide is a complete digital study edition: the full guide as PDF and EPUB, practice tests with every answer explained, flashcards, a downloadable toolkit, the complete audiobook and an AI study tutor that answers from the guide's own chapters. Many guides are also sold as paperbacks on Amazon, where our publisher page is PrepMaster Digital on Amazon.
Who is behind the guides
- Damiano S. — publisher of PrepMaster Digital; oversees every guide from outline to release.
- Hana N. — quality reviewer; checks each guide's content, layout and practice questions before release.
How a guide is made
Each guide starts from the official outline of the exam it covers. The content is written, every practice question goes through a second review pass before publication, and each answer comes with an explanation of why it is correct. How we choose sources and correct mistakes is described in our editorial policy.
What we are not
We are not affiliated with, endorsed by or connected to any exam body, testing company or licensing board. Exam names and trademarks belong to their owners. For official rules, dates and fees, the exam body's own pages are the final word: on our exam pages we link them and say when we checked them.
Free tools
You can check where you stand before buying anything with our free readiness tests: no account, a verdict and the topics to study next.
Guarantee and support
Digital purchases are covered by a 14-day money-back guarantee (see the refund policy). For anything else write to info@prepmasterdigital.com or use the contact page: a real person answers.