How do I download ebooks?

After purchase, your ebook is instantly available for download from your account.

What payment methods are accepted?

We accept PayPal and Stripe for secure, easy checkout in USD.

Can I get a refund?

Due to digital nature, refunds are only for download issues with support.

Are ebooks available in other languages?

Currently, ebooks are in English with Spanish diagram editions included.

Is lifetime access included?

Yes, once purchased, you have lifetime access to download anytime.