As of my last update in April 2023, Amazon's Kindle Direct Publishing (KDP) platform, which is used for publishing eBooks and paperbacks, doesn't have specific categories or subcategories exclusively for planners. This is primarily because planners are typically more functional as physical products due to their interactive nature, involving writing, marking dates, etc. However, if you're looking to publish a planner or a related book on KDP, you might consider the following categories and subcategories that could be relevant: Non-Fiction: Self-Help
Personal Development
Time Management
Productivity
Business & Money: Time Management
Personal Finance (for budget planners)
Organizational Behavior
Education & Teaching: Study Skills (for academic planners)
Education Theory
Crafts, Hobbies & Home: Crafts & Hobbies (for creative or artistic planners)
When choosing a category for a planner or a book about planning, consider the content and purpose of your planner. For instance, if it's a budget planner, categories related to personal finance or budgeting would be appropriate. For a planner focused on productivity and time management, categories under Self-Help or Business & Money would be suitable. Remember, the categories available on KDP can change, and Amazon may update or revise them. It's always a good idea to check the current KDP categories and guidelines when you're ready to publish.