You've booked your venue, the date is now set, so when do you tell people and get your save the dates and invites out? This is something I hear from brides to be all the time.
Firstly there are no set rules with planning a wedding. It's all about what works best for you. But here are some of my recommendations:
Save The Dates
Once you've booked your venue and set the date you are good to go in terms out sending out your save the dates. You don't have to send them immediately, but if you want to you can. I would suggest sending them anytime between 6-12 months before your wedding. Obviously if you have a short engagement, get them out asap.
Send your invites out 2 months before the wedding date. If you have sent save the dates there is no rush. Giving people too long to reply means there is a higher likelihood of them forgetting to respond, loosing the invite and you being left chasing guests for replies! Give them 1 month to reply and have the RSVP date 1 month before the wedding, that allows a bit of time for