25% off in the migration guide to FB3
To celebrate the New Year, I’m offering a 25% discount in the eBook version of the Migration Guide to Firebird 3, so you will pay USD 12 instead of USD 16! The discount is valid until 2020 Jan, 11.
Hurry up and save some money! To get the discount, enter the coupon code GUIDE25 when filling the order form.