Batavia Workbench books

One method. Two seats at the table.

The core book begins with the operator's problem. The companion begins with the builder's bet. Both use the same discipline: name the decision, test the evidence, and make the next move explicit.

Core decision system

Structured Thinking for Indirect Tax Technology

A practical decision system for mandates, failures, vendor choices, and transformation programs

Turn a difficult tax-technology event into a framed, evidence-backed recommendation before it reaches the senior desk.

Chapters: 22
Parts: 4

For In-house indirect-tax technology leaders and the teams that support them.

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Builder companion

The Tax Technology Builder's Companion

Market, product, pricing, partnership, and scaling decisions for indirect tax technology

Connect every builder bet to operator pain, evidence of value, control consequences, and an explicit stop condition.

Chapters: 9
Parts: 4

For Product leaders, founders, strategists, consultants, alliance teams, and commercial operators.

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ASK Advisor · included

The whole method, pointed at your problem in 60 seconds

Type the mess as you'd say it out loud. ASK routes it to the right decision path, returns a step-by-step working plan, and cites the exact chapters and templates behind every step — grounded in all 31 chapters, never invented.

31: Chapters grounding it
9: Tools it routes to
20: Analyses included

Try ASK now

Describe a live challenge — one or two sentences is enough.

Or start from an example