About

John Colley

Investment banker. Educator. Author. 30 years turning complex deals into teachable frameworks.

I started my investment banking career in 1988. Over the next 30+ years I advised on transactions across IB, M&A, and private equity — deals that taught me what actually works, what the textbooks get wrong, and where the real judgement calls live.

Now I teach it.

This is where I share the practitioner knowledge that does not make it into generic training programmes: the frameworks, mental models, and technical detail that investment banking actually demands. If you work in finance — or want to — you will find content here that treats you as a professional, not a student sitting an exam.

What I Cover
Valuation  ·  LBO modelling  ·  Due diligence  ·  Deal structuring  ·  Comparable analysis  ·  M&A execution  ·  Private equity  ·  Financial covenants

The mechanics of real transactions, explained by someone who has been in the room.

Where Else to Find My Work

If you want to go deeper on any topic

  • Udemy30+ specialist courses with 150,000+ enrolled students
  • AmazonThe Investment Banking Practitioner's Handbook Series — 88 reference titles
  • YouTubeFree weekly practitioner insights
  • CoursesPremium courses with AI-powered study tools at jbdcolley.com/courses
Credentials
Former British Army Captain
Cambridge Graduate
MBA with Distinction — Bayes Business School
30+ Years in IB, M&A & Private Equity

Not textbook theory.
Real deal experience.