Terms and Conditions

Last updated: 9 October 2026

This site is operated by QUILLSTONE DIGITAL LLC, 1057 NW 136TH AVE, Miami, FL 33182, United States, trading as Studio Facile. You can reach us at info@studiofacilebook.com and we answer within 24 hours on working days.

What we sell

Illustrated study material about physics for high school students and AP Physics 1 candidates in the United States, delivered as downloadable PDF files. Nothing is shipped physically.

This is study material, not a course or a guarantee. It does not replace your teacher, your textbook or the official course materials, and it cannot guarantee a grade or an exam score. AP and Advanced Placement are registered trademarks of the College Board, which is not affiliated with this material and does not endorse it. The practice questions were written for this material; they are not official exam questions.

Your purchase

One payment. There is no subscription and no recurring charge.
Payment is processed by Stripe. We never see or store your card number.
The download link is emailed to the address you enter at checkout, normally within a few minutes.

What you may and may not do with the files

You may read the files on your own devices and print them as often as you want for your own use. You may not resell them, share them publicly, upload them to file-sharing sites or distribute them to third parties.

Refunds

See the refund policy.

Liability

We take care that the content is accurate and based on recognized sources (standard introductory physics and the published topics of the AP Physics 1 course). Even so, the material is educational: always follow your teacher and your official course materials. To the extent allowed by law, our liability is limited to what you paid.

Changes and governing law

We may update these terms; the date at the top shows when. These terms are governed by the laws of the State of Florida, United States.