Hi.
What is the right way and steps to create VLANs on MikroTik.
Do I need to create bridges?
My example in file.
I try to understand Mikrotik’s Wiki, but I found very complex config there and no ideological description.
I have bridge-local as corporate LAN, bridge-guests as guests LAN. Do I need to attach IP-address to VLAN or I need attach IP-address to the bridge?
Please describe only steps, not detailed config from terminal.

if i understood you correctly, then steps are as follows:
- on APs you create virtual AP interface for other group, like ssid for guests with separate network
as result guests will be separated out from main network. - create VLANs on ethernet interface and bridge one with AP and other with vAP
now you have 2 separate wireless networks using same APs in your infrastructure
What about bridges? Do I need attach IP-address to the bridge or VLAN?
depends on the configuration. However, wifi usually has DHCP working, so you you will have to create DHCP-server on bridge and to do that assign IP address on it for DHCP to work. On static configuration you do not need the IP addresses.