Regional Air Pollution Study: Gas Chromatography Laboratory Operations

Medieval Underpants and Other Blunders: A Writer’s (& Editor’s) Guide to Keeping Historical Fiction Free of Common Anachronisms, Errors, & Myths [Third Edition]

I Spy Valentine’s Day: Help Teddy Prepare for the Big Valentine’s Party! A Colorful and Interactive Search and Find Book for Kids Ages 2-5 (Cute Valentine’s Day Gift for Toddlers)

Jumbo 100 Fun Valentine’s Activities For Kids 5-10: Brain Training Activity Book for Clever Kids!

I Spy Bible: Discover Timeless Bible Stories from Creation to Easter! A Cute Search and Find Book for Toddlers (I Spy Books for Toddlers)

Spot the Difference Book for Kids ages 8-12: Seek and Find Hidden Picture Activity Book for 8, 9, 10, 11 and 12 Year Old Children | Includes SUPER HARD Bonus Section

Easter Gifts For Kids: I Spy Easter Book For Kids, Ages 3-7 (Easter Basket Stuffer): A Fun Interactive Guessing Game And Coloring for Toddlers and Preschoolers

My Big Search & Find Learning Fun Pad (Floor Pad)

Totally Awesome Explore and Find Book For Kids: More than 50 Fun Scenes to Search with More than 500 Things to Spot!