* Published books: His most famous poems are collected in books like "Where the Sidewalk Ends," "A Light in the Attic," "Falling Up," and "Every Thing On It." These are the most readily available collections.
* Unpublished work: Shel kept writing throughout his life, and there are likely poems he never published. Some of these may be in private collections, or even still undiscovered.
* Other forms: He wrote songs, scripts, stories, and illustrations in addition to poetry.
How to find Shel's poems:
* Libraries: Check your local library for copies of his books.
* Online retailers: Amazon, Barnes & Noble, and other online retailers sell his books.
* Shel Silverstein website: The official Shel Silverstein website has some information about his work and may have some resources for finding his poems.
* Online databases: Search online databases like Poetry Foundation or the Academy of American Poets.
* Second-hand booksellers: You might find rare or out-of-print collections at antique bookstores or online auction sites.
Remember, finding a "complete" list of all Shel Silverstein poems may be impossible due to the nature of his work and the potential for undiscovered pieces. But you can definitely explore his incredible writing through his published collections and other online resources!