My kid isn't very old yet, but Brain Rules for Baby seems to have pretty reasonable advice for raising a smart and well-adjusted child: no spanking, explain your rules, help your child label her emotions, etc.
The author cites peer-reviewed research to back up his advice but also intersperses the book with plenty of anecdotes about his own family. Hilariously, he says that life isn't a competition! Babies develop at their own rates! Don't worry if your baby isn't reciting Shakespeare by age 3! But also, let me tell you about my son, whose first word was octopus (surrre) and he said it at 6 months old. Side-eye for days, dude.