Frequently asked questions
Quick answers about buying, downloading and using our books and guides.
What do I get when I buy a book?
A PDF file you can read on any phone, tablet or computer, and print if you like. Bundles contain several PDFs.
How do I get my download?
Straight after payment the download links appear on the thank-you page. We also email them to you, and they stay in My downloads.
What do I need to fill in at checkout?
Only your name and email address. These are digital products, so there is no shipping address.
How can I pay?
By debit or credit card, processed securely by Stripe. We never see or store your card details.
I did not receive my email. What should I do?
Check your spam or promotions folder first. If it is not there, contact us with the email you used and we will resend your links.
Can I see inside a book before I buy?
Yes. Every book page has a free sample you can flip through, and you can download two free chapters from the shop.
Which exams do the books cover?
The economics books follow AP Microeconomics and Macroeconomics, Cambridge International AS and A Level Economics (9708), IB Economics and first-year university courses. Statistics Made Simple covers AP Statistics and introductory university statistics. Mathematics Made Simple covers AP Calculus AB and BC, Cambridge 9709 and IB Analysis and Approaches. Econometrics Made Simple covers first and second-year university econometrics, with Python, R and Stata.
Do you have resources for teachers?
Yes. There is a Teacher Pack for each subject: the Economics Teacher Pack (30 chapters), the Statistics Teacher Pack (16 chapters) and the Mathematics Teacher Pack (20 chapters). Each gives you editable PowerPoint slides with speaker notes, lesson plans, worksheets, chapter tests with mark schemes, exit tickets, two exams, a diagram bank and a teacher guide. The Statistics and Mathematics packs include the matching textbook and practice book for $39. For economics, the Teacher Bundle adds the textbook and practice questions for $49. You can see them all under For teachers in the shop.
Are the step-by-step guides really free?
Yes. Every guide on the site is free to read, with worked examples and practice questions. The books go deeper and add many more questions with full answers.
Can I share the PDFs with my class?
Each purchase is for one person. Teachers who want copies for a class can contact us about a school licence.
Can I get a refund?
See our refund policy. If a file will not open or is faulty, contact us and we will fix it.
Still stuck? Contact us and we will reply within one working day.