Just wondering if someone could recommend some books/websites/etc for helping me understand what age appropriate behavior expectations are for my LO. For example, she's 10 months old and is starting to scream a lot when unhappy, i.e when put down, something is taken away, etc. I don't want to reinforce the screaming, but don't think she is old enough to be expected to be quiet before being picked up. But I have no clue WHEN that would be an appropriate expectation for her..... I guess I am looking for books on infant/toddler development.... Thoughts anyone?