There are two presale stages.
Private presale will have a whitelist, and only those on the whitelist will be allowed to participate. To be eligible for the Embr private presale, you need to be a legacy token holder. Check https://joinembr.com to see if your Binance Smart Chain wallet address is eligible!
Public presale is open to everyone. There is no whitelist and anyone who wants to reserve tokens may choose to do so.