Is the writer by richard wilbur an example of iambic pentameter?
No. It does not follow a strict rhythmic pattern. It tends toward anapests, especially in the first 15 lines, where the rhythm may suggest an echo of the typing. It’s not pentameter; the shorter lines (the first and third in each stanza) tend to be trimeter. Sorry about all the “tend” answers, but while the poem is heavily rhythmic, it does not stick to a meter that has a name.
