- vim-galore is a huge guide about all things Vim.
- Why, oh WHY, do those #?@! nutheads use vi? explains common misconceptions about vi and Vim.
- Your problem with Vim is that you don't grok vi is a pure gem. Read it every once in a while.
There is only one good book about Vim out there: Practical Vim.
Help us explain this better! File a GitHub issue at https://github.com/exercism/vimscript/issues if you have suggestions, or submit a patch with improvements to the https://github.com/exercism/vimscript/blob/master/docs/RESOURCES.md file.