5 books in series

A Smart Girl's Guide...

A Smart Girl's Guide... is a 5-book series with 5 primary works first released in 1997 with contributions by Nancy Holyoke, Dottie Raymer, Patti Kelley Criswell, and Julie Williams Montalbano.

Staying home alone
Oops!: The Manners Guide for Girls
A Smart Girl's Guide to Boys: Surviving Crushes, Staying True to Yourself & Other Stuff
A Smart Girl's Guide to Friendship Troubles: Dealing With Fights, Being Left Out and the Whole Popularity thing
A Smart Girl's Guide to Starting Middle School: Everything You Need to Know About Juggling More Homework, More Teachers, and More Friends