Excel and analysis
Excel Data Analysis Mastery
Turn a messy ecommerce file into a defensible analysis, dashboard, reporting process, and portfolio case.
View editions →Independent practical publishing
PublishFlow Lab
Books for professionals and independent builders who want clear systems, concrete decisions, and work they can apply immediately.
Current catalog
Build the work, not just the notes
Each title is available as a focused Kindle edition and, when offered, as a complete implementation bundle through Gumroad.
AI workflows
Prompt Engineering Playbook
Design repeatable prompt workflows for content, code, research, customer analysis, agents, and operations.
View editions →Practical scope
Every title is organized around work a reader can build, inspect, and explain.
Clear limits
Examples separate useful guidance from claims the available evidence cannot support.
Reusable systems
Methods are designed to travel across projects, tools, and changing operating conditions.