Start by going to Manage --> Website Integration
From this page, you can get embed codes for your:
Lead forms
Add on gallery
Backdrop gallery
Design template gallery
Staff profiles
Booking availability calendar
Appointment scheduler
Mini sessions
You can link your packages to your website
You can either click Get Embed Code to get links to your packages from this page, or you can go to Manage --> Packages and click the link icon under each package. To link to the entire booking page, simply copy the link at the bottom of the package manager.
If you're working with a website designer
You can simply give them the link at the bottom of the page from Manage --> Website Integration.
That link will give them access to everything on this page, so they can link your packages, lead forms and everything else listed above without needing access to your account.