50 States, 500 Campgrounds: Where to Go, When to Go, What to See, What to DoNational Geographic, Joe Yogerst
50 Things Every Young Lady Should Know Revised and Expanded: What to Do, What to Say, and How to BehaveKay West, John Bridges, Bryan Curtis
50 Things to See in the Sky: (illustrated beginner's guide to stargazing with step by step instructions and diagrams, glow in the dark cover)Sarah Barker
100 Things to Know About the OceansJerome Martin, Lan Cook, Alice James, Alex Frith, Minna LaceyEditoreUsborne
100 Things to Know About the Unknown: A fact book for kidsJerome Martin, Alice James, Lan Cook, Tom Mumbray, Alex Frith, Micaela TapsellEditoreUsborne
50 True Stories That Will Scare You to Death: True Crime, Hauntings, Aliens, and MoreSebastian KrahlEditoreCallisto Publishing
100 Things to See in the National Parks: Your Guide to the Most Popular Features of the US National ParksStefanie PayneEditoreAdams Media
500 Crochet Stitches: The Ultimate Crochet Stitch BiblePavilion BooksEditoreSt. Martin's Publishing Group
100 Things to See in the Night Sky, Expanded Edition: Your Illustrated Guide to the Planets, Satellites, Constellations, and MoreDean RegasEditoreAdams Media
100 Things to See in the Night Sky: From Planets and Satellites to Meteors and Constellations, Your Guide to StargazingDean RegasEditoreAdams Media
500 Sewing Tips, Tricks, Techniques, and Hacks: Must-Have Manual for Easy and Accurate SewingAshley Hough
501 Spanish Verbs, Tenth EditionChristopher Kendris Ph.D., Theodore Kendris Ph.D.EditoreBarrons Educational Services
501st: Star Wars Legends (Imperial Commando): An Imperial Commando NovelKaren TravissEditoreRandom House Worlds
100 Trails, 5,000 Ideas: Where to Go, When to Go, What to See, What to DoNational Geographic, Joe YogerstEditoreDisney Publishing Group
100 Train Journeys of a Lifetime: The World's Ultimate RidesEverett PotterEditoreDisney Publishing Group
100 Tricks to Appear Smart in Meetings: How to Get by without Even TryingSarah CooperEditoreAndrews McMeel Publishing
