For those who have second kids, how and when did you start preparing your elder kid for the new baby's arrival?

How old is your elder kid? I borrowed books from the library that talks about a new baby arrival. I read to him and explain to him that his is also going to have a new baby brother/sister. Basically is to get him involve in the whole process. Eg. bring him along for your checkups, bring him along when you go shopping for baby stuff. Get him to pick out something for his brother/sister. One very important thing I did was to get my family members and close friends to prepare a gift for him too when the baby is out. Many times, people come visit you and your baby at the hospital bearing gifts for mother and baby. And the older kid is left out. When he sees all the attention on the baby and all the gifts, jealousy may form. Congratulations by the way!