We automatically send receipts by email with every purchase. (We send an HTML receipt and a PDF invoice.)
After you make a purchase, you will be taken to a page where you will see an option to add custom information, which can include a company's name and address. Then you can send yourself a new receipt that will include the same information.
If you provide your EU VAT number when purchasing it is added to the invoice.
You can also click a button in our receipt email to go to a section of your Leanpub account where you can add custom information to the receipt for your purchase, which can include your firm's name and address.
When you are adding the custom information, you can also tick a box so the information will be automatically included in all future receipts.
To request a new receipt for any Leanpub purchase you've made, go to your 'Purchases' page at https://leanpub.com/user_dashboard/purchases. (If you're not logged in automatically, please read the next paragraph!) After that you can click on the book you want a receipt for and then click 'Email Me a Receipt' at the bottom right of the box on the right. You can add custom information to your receipt from there.
If you're new to Leanpub, here's how this works: we automatically create an account for you when you purchase your first Leanpub book. We do this so that you can always access the latest version of each book. If you haven't set a password for your account, you can do this using the 'Reset Password' link on our Login page (https://leanpub.com/login). Once you sign in, you'll be able to go to your 'Purchases' page.