What features make opinion writing strong? How do writers craft opinions to make them powerful? This Big Book and five supporting mentor texts provide many examples of strongly crafted opinions to help students answer these questions. With all the small books written by students, these texts tackle topics, such as "Should we squash bugs?" and "Dear Principal: Can we have a pet?" An opinion letter in the Big Book includes call-outs to help students remember what features are important in crafting opinions. Use these student-written mentor texts to help learners analyze opinions and arguments and to identify features of opinions before they write their own.