These are the current prices for the digital content sold by Creston Labs, Sociedad Limitada. All prices are in US dollars (USD). Any applicable taxes (VAT, GST or sales tax) are calculated and shown at checkout by our payment processor before you confirm the purchase — the price you see at checkout is the price you pay.
E-books (one-time purchase)
Each e-book is a focused, practical guide delivered instantly as a digital download after purchase. One payment, no recurring charges.
| Product | What you get | Price |
|---|---|---|
| Practical guide — standard edition | One complete e-book, instant download | $27 |
| Practical guide — extended edition | One in-depth e-book with additional material, instant download | $47 |
| Complete collection | Three-title bundle covering a full topic, instant download | $97 |
Newsletter subscription
Subscription newsletters are delivered by email on a regular schedule. You can cancel at any time from the link included in every issue; cancellation takes effect at the end of the current billing period and you are never billed again.
| Product | Billing | Price |
|---|---|---|
| Newsletter subscription | Monthly, cancel anytime | $9.90 / month |
Questions
If anything about our pricing is unclear, write to [email protected] and we will reply within 2 business days.