Some things, such as the advice regarding only children, single parents, divorce, friendships, overplacement in school and unfavorable habits, is still revelant but for the most part, this is something you should read only if mid century attitudes and parenting interest you. It wasn't so much the advice they gave I liked (I found most of it highly questionable really), but the letters themselves and especially the readers' opinions and stories. Not because I agreed with them but for the glimpse into the past.
All the complains of children being undisciplined, running wild and spend too much time in front of screens sound so familiar, I'd like to hand this book to any baby boomer who insist that unlike youths today, they themselves were always well behaved, played outside, read books and surely didn't vegetate in front of the TV or smoke. This book sure does tell a different story.