Another client of mine had written 10 stories on core values for a pre-school operator. "He paid me very little as compared to another writer," she said to me. "My stories are better as I write, illustrate and translate to Chinese language."
"He asked you to sign and paid you," I said. "So he has the copyrights. But you can always write another version. After all, you can write about a cat with one black ear instead of two black ears." She had lost her motivation.
Core values are now in the school curriculum but she said there are many other authors. "Does it mean no new writers should write about the same topic just because there are thousands of writers of how to care for your cat?"