Former eBay chief executive Meg Whitman, a presumed candidate for governor of California, is working on a book about the “core values” that helped her build the online commerce giant. The book, currently untitled, is scheduled to be published by Crown Business in February, just as California starts voting for its next governor. “Whitman will interweave personal stories and leadership lessons culled from her tenure at eBay and other companies,” according to a statement issued Monday. “She will offer a blueprint for success in both business and life, identifying core values that make it possible to achieve success without ethical compromise.”