Trial lawyer · Founder · Speaker

Jonathan Nessler.

A trial lawyer’s judgment.
A founder’s curiosity.

I represent people in the courtroom and write and speak about how artificial intelligence is changing legal work.

Explore the intersection
Springfield, IllinoisIn practice since 2007
Portrait of Jonathan Nessler
Law. Technology. Human perspective.

Where I put
ideas into practice

Attorney NesslerMy trial practice Integrated CognitionFounder · Artificial intelligence

01 The work

Representing people.
Building what’s next.

My work begins with understanding what people need—and finding a better way forward.

I.

Law &
trial advocacy

Attorney

Nessler &
Associates

Representing people in personal injury and wrongful death litigation. My practice includes automobile collisions, medical malpractice, nursing home negligence, and premises liability.

Explore my legal practice
II.

AI &
education

Founder

Integrated
Cognition

Through Integrated Cognition, I write and teach about AI for lawyers and business owners: how it works, where it falls short, and how to use it with sound judgment.

Start learning about AI
About Jonathan’s work and background

02 The perspective

New possibilities.
The same
human judgment.

Jonathan T. Nessler

My interest in technology grows out of my work as a lawyer.

Since beginning my practice in 2007, I’ve seen how much depends on understanding a person’s situation, asking the right questions, and exercising judgment.

That perspective carries into my work with AI. Technology can make us more capable. Using it well still takes experience, care, and an understanding of the people it serves.

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Explore the connection between law and artificial intelligence

The intersection

01 / The practice of law

Start with
the person.

Understanding a person’s situation. Asking the right questions. Making a complicated story clear. That is where my work as a trial lawyer begins.

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02 / Where the two meet

Better tools.
Human judgment.

My work in law shapes the way I approach AI: start with the people, understand the problem, and bring experience and care to the decisions that follow.

Explore these ideas

03 / Artificial intelligence

Make room for
better work.

Understanding what AI can do—and where it can fail—helps lawyers decide when to use it and what to verify.

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Two disciplines. One human perspective.Choose a view to explore
2004 / 2007

University of Illinois

Bachelor of Science & Juris Doctor

2007

Trial practice begins

Representing people in Illinois

2024

AI Task Force appointment

Illinois Supreme Court

03 Speaking & writing

Out loud.
On the page.

Technology changes the way we work. I write and speak about what that means for lawyers—and the judgment it takes to use it well.

Explore speaking
Infinite Counsel book cover by Jonathan Nessler

The book · By Jonathan Nessler

Infinite Counsel

A Lawyer’s Guide to Understanding Artificial Intelligence and the New Economics of Practice

How artificial intelligence works, what it changes about legal practice, and where a lawyer’s judgment matters. Published by Integrated Cognition, LLC.

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Selected writing

Essays & articles
Integrated Cognition

What Is Jev?TypeSafe AI’s Decision Model Explained for Lawyers

Read the guide
Legal Technology

Blockchain and Smart ContractsA Guide for Illinois Lawyers

Read at ISBA

Articles open on their publishers’ sites; ISBA access may require membership.

Browse all writing and the book

04 The professional record

Experience,
in detail.

Education, court admissions, representative cases, and service to the profession.

Selected recognition

Leading Lawyers

Listed in a July 2025 Springfield-area survey
01 / Education

Bachelor of Science and Juris Doctor from the University of Illinois.

02 / Practice

Admitted to practice in Illinois and federal courts, with representative appellate matters in the professional record.

03 / Service

Professional service in law practice management, legal technology, and artificial intelligence.

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A good place to begin

Let’s start
a conversation.