random areas of the development of Judaism, particularly in the modern era.
Should have said “beer, booze, and brews.” 
Sensory processing and language disorders, autism, and immigration (specializing in illegal immigration).
Professionally, I’m a general internist, but I’d probably claim expertise in management of hypertension and diabetes and in the processes of evidence-based medicine.
Outside work I’d say I’m an expert in the food and cooking of Kentucky and indie rock, especially of the last five years.
The ladies.
Just kidding, I have no CLUE about the ladies.
Actual expertise includes illustration and design, teriyaki wings, and staying single.
Vehicular/commuter cycling skill and knowledge (in accordance with local traffic regs)
application of Instructional Systems Design (Training Development is my profession)
amateurish pseudo-expertise on urban planning
I can converse comfortably about all things prairie, public health issues, family systems, teaching, Victorian culture, horror movies, circus and carnival sideshow history, the joys of motorcycling, cooking, and sewing. Still learning new things.
I’m a pharmacy student, so I know a lot about medications, and what I don’t know off hand, I know where to find the answers… Wouldn’t call myself an “expert”, but know way more then the average person.
Oh, I also know a LOT about the female reproductive system, at least more then anyone at school, even the teachers.
Self-professed expert:
Economics
Financial translation (J-E)
Japanese language & Japan in general
Equity research
Workflow & production systems
Tennis
More knowledge than average person
Almost all sports except motorsports and cricket
History up to the middle ages
Mathematics
Beer and homebrewing
Cycling & cycling with a power meter
Chess
Graphic design, particularly branding and print
Cooking, particularly fish and pasta
Snogging. I am a GREAT snog x
I’m pretty damn good at making small talk.
I’m excellent at interviewing for a new job.
I’m at my finest when wiating for the foursome in front of us to clear out of the fairway and somebody needs to say something funny.
DRUMS (percussion)
Structural Steel
Metal (music)
Three Stooges
Being Totally Badass
The others I shall keep to myself!
Narcotics Investigation - Court Recognized - which allows me to state an opinion while testifying.
That and $4 will get me coffee from the local barrista. (Which, in my opinion, is an absurd amount to pay for a coffee but I’m no expert there.)
Oakley sunglasses, 1980-1994 hard rock and heavy metal, Florida workers’ compensation law, Orlando-area theme parks, and the novels of Raymond E. Feist.
Building the information super highway 1985-2000.