I needed to read in detail in the intro to find out if these signs were official ASL signs or not - it turns out they are a mix. If that doesn't bother you, then the book has excelltent pictures. However, I feel like if you are going to teach a kid to sign, you should teach them the official signs - teaching them different ones means that only you and the few people you know can understand them; with ASL signs, everyone can understand them even if it takes baby a bit longer to master the signs.
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