How will i install a new lightbulb in my house? better if you will send me a diagram. thanks

First off all make sure the light swicth is off if there is a light shade around it take is off then hold the light the white light fitting and get hold off the bulb then push up gently and turn the bulb antiy clockwise and it will pop out to replace new bulb off same watts do the same as taking it out but in reverse then put shade back on then try the swicth to see if it turns on if not the bulb is no good try a new on but be gentle with them they brake easy ok hope this helps you