Thirty is a pretty big number in publishing. In 30 days, you can do pretty much anything — thin your thighs or change your life. In 30 minutes, you can cook an Asian meal or give yourself a makeover. And when it comes to advice, a lot of that comes in doses of 30. Here are our favorite books about our special anniversary number of 30.

30 days to finding and keeping sassy sidekicks and BFFs : a friendship field guide by Clea Hantman

30 reasons employees hate their managers : what your people may be thinking and what you can do about it by Bruce L. Katcher with Adam Snyder

Origami card craft : 30 clever cards and envelopes to fold by Karen Elaine Thomas

30 greatest hits [sound recording] by Franklin, Aretha

30-minute resume makeover : rev up your resume in half an hour by Louise Kursmark

Learn Tamil in 30 days by N. Jegtheesh

30 minutes to mealtime : a Healthy Exchanges cookbook by JoAnna M. Lund with Barbara Alpert

30 days of night [videodisc] by Ghost House Pictures ; Columbia Pictures ; Dark Horse Entertainment

30 days in Italy : true stories of escape to the good life by edited by James O'Reilly, Larry Habegger, and Sean O'Reilly

The 30-day heartbreak cure [sound recording] : getting over him and back out there one month from today by Catherine Hickland

30 essential yoga poses : for beginning students and their teachers by Judith Lasater

30 years of adventure : a celebration of dungeons & dragons

30 [sound recording] by Buzzcocks

Change your life in 30 days : a journey to finding your true self by Rhonda Britten

30-minutes to fitness [videodisc] : Bootcamp by Kelly Coffey-Meyer

The 30-second swing : how to train your brain to improve your game by T.J. Tomasi with Kathryn Maloney

30-minute Asian meals : 250 quick, tasty and healthy recipes from around Asia by Marie Wilson

Thin thighs in 30 days by Wendy Stehling

30 Rock. Season 1, Disc 1 [videodisc]

Turning 30 by Mike Gayle

30 eco-trips in Florida : the best nature excursions (and how to leave only your footprints) by Holly Ambrose ; foreword by M. Timothy O'Keefe, series editor

Midlife crisis at 30 : how the stakes have changed for a new generation--and what to do about it by By Lia Macko and Kerry Rubin

30 #1 Hits Of The '30s [sound recording]

30-minute rubber stamp workshop by sandra McCall

Storybook travels : from Eloise's New York to Harry Potter's London, visits to 30 of the best-loved landmarks in children's literature by Colleen Dunn Bates and Susan LaTempa

13 going on 30 [videodisc] by Revolution Studios presents a Roth/Arnold production, a Gina Matthews production

Vintage Knits : 30 Knitting Designs from Rowan for Women and Men by Fassett, Kaffe/ Dallas, Sarah/ Hargreaves, Kim/ Storey, Martin/ Peake, Sharon

Appalachian banjo breakdown [sound recording] : 30 bluegrass banjo classics

The 30-minute pregnancy workout book : the complete light weight program for fitness by Anna Aberg