[en] Say What? · the Fiction Writer's Handy Guide to Grammar, Punctuation, and Word Usage Ubiquitous Press
[en] The Art Gallery Guinea Pig Education
[en] The Accident Report Guinea Pig Education
[en] Dinosaur Discovery Guinea Pig Education
[en] Looking at Peoples Lives Guinea Pig Education
[en] The New Head Teacher Guinea Pig Education
[en] Additional Exercises for Diagramming Sentences · A Playful Way to Analyze Everyday Language Createspace Independent Publishing Platform
[en] The Cup Cake Guinea Pig Education
[en] The Computer Game Guinea Pig Education
[en] The Space Age Bag Guinea Pig Education
[en] The Present Guinea Pig Education
[en] Dolphin Day Out Guinea Pig Education
[en] Diagramming Sentences · A Playful Way to Analyze Everyday Language Amy Lynn Hess
[en] Do I Make Myself Clear? Little Brown and Company
[en] More Nitty-Gritty Grammar · Another Not-So-Serious Guide to Clear Communication Ten Speed Press
[en] Schaum's Outline of Latin Grammar McGraw-Hill Education
[en] Do I Make Myself Clear? · Why Writing Well Matters Little Brown and Company
[pt] 1001 Dicas de Português · manual descomplicado Editora Contexto
[it] Prima L'Italiano Newton Compton