Relationships have changed quite a bit since the free-loving '60s. With online dating, sex apps and robot weddings, hippies would hardly know where to start.
Despite our technological advances, the truth is, good old-fashioned romance has kept up with the times -- whether we realize it or not. Charles Schulz knew a lot about relatability, and his 1965 book about matters of the heart still holds up today.
Love Is Walking Hand in Hand features comics of the Peanuts gang alongside adorable quips about what defines love. Whether it's sharing a snack or letting the other person win in Words With Friends, these small acts of affection have kept love alive for decades.