Hi there, here you go:
1st step: Register or log in on https://bookbuild.kyc.legal/
2nd step: KYC tokens (You can enter a number of KYC Tokens you want to buy and calculate the amount you would need to have in your account wallets.)
3rd step: Make a deposit (Choose between Bitcoin, Litecoin, Dash, Ether Classic, Ether, ZCash)
4th step: Buy KYC.legal tokens.