I'm on Cloud Nine!

"Has someone ever told you they were on cloud nine? What does that mean exactly? Learn the meaning and origin of this unusual phrase and many more in this engaging, informative book. Colorful, humorous illustrations and clear examples help readers better understand idioms and how to use them. Additional features include a table of contents, a glossary, critical-thinking questions, sources for further research, an introduction to the author and illustrator, and an index."--Publisher's website.