Donald Trump's testimony in the defense's case has so far centered around a slide show being presented by the defense, entitled "The Trump Story," that paints a timeline of Donald Trump's real estate acquisitions. When state attorneys objected to the glossy presentation -- which Trump Jr. acknowledged was created by his marketing team -- the judge allowed the slides, and thus permitted Trump Jr. to testify unrestrained about the company's properties.

"He's an artist with real estate. He sees the things other people don't," Trump Jr. said at one point when describing his father.

As he narrates the slide show, Trump Jr.'s testimony resembles a lecture on real estate, sprinkled with details about his family's properties -- such as the individual stones used to construct the Seven Springs estate or the bank safes at 40 Wall Street, which he said once stored gold from the Federal Reserve.

"They're actually spectacular ... it's truly a mechanical work of art," Trump Jr. said of the safes.

Referencing broken down historic properties that the company has transformed back to their former glory, Trump Jr. called such properties the "canvas" for his his "father's art."

"He understands and has an incredible vision that other people don't," Trump Jr. said.

After a particular lengthy response, Trump Jr. referenced his father's own tendency to speak in prolonged monologues, joking, "I got half the genes."

Testifying for the defense, former President Trump's eldest son described his father as a real estate "visionary" who "sees the sexiness in a real estate project," creating value for the family business that cannot be captured on paper.

Donald Trump Jr. began his testimony with a quip after Judge Engoron welcomed him back to the stand following his testimony earlier in the month.

"I'd say it's good to be here, but the attorney general would probably sue me for perjury," Trump Jr. joked.

In his testimony, Trump Jr. described the Trump Organization as "a large family business," with Trump and his eldest children at the top and other executives handling many of the details.

"If there were numbers and things, I would rely on them to give me that," Trump Jr. said.

He recounted the history of the Trump Organization, beginning with his great-grandfather who he said built hotels in the Yukon Territories of Canada. His grandfather, Fred Trump, "started working on job sites around Queens, learned the trades" and eventually "created an incredible portfolio, by the time of his passing, of rental apartments in Brooklyn and Queens."

A state attorney jokingly objected that references to the 1800s were outside the statute of limitations -- then more seriously objected to the history lesson's relevance.

"I think it is relevant to get the historical perspective -- I find it interesting," Judge Engoron said in overruling the objection. "Let him go ahead and say how great the Trump Organization is."

Trump Jr. obliged.

"My father learned a lot of the business from him, but had some flair and saw New York City and Manhattan as the ultimate frontier," he said. Speaking of Trump Tower, he said, "I think it would have been one of the first, I think great, ultra-luxury real estate emerging in Manhattan."

"Would you like to call your first witness, defense?" Judge Arthur Engoron asked to begin court this morning.

"The defense calls Donald Trump Jr. to the stand," defense attorney Clifford Robert responded.

Like his last time on the witness stand when he was called by state attorneys, Trump Jr. appears comfortable on the stand, punctuating his testimony with lighthearted remarks.

Robert began his direct examination with some questions about Trump Jr. 's biography, starting with his graduation from the University of Pennsylvania.

"Was a bartender for about 18 months," Trump Jr. said about his first job out of college.

"Did you enjoy that?" Robert asked.

"I did," said Trump Jr., joking that he had a challenging conversation with his father when he began that job.

Donald Trump Jr. and his defense lawyers arrived at the New York State Supreme Courthouse this morning to be met with a small crowd of protestors chanting "crime family."

Trump Jr. did not make a statement before entering the courthouse, but offered a brief response to a question about his expected testimony.

Asked what he plans on saying today on the stand, he replied, "We'll see what I'm asked."

New York Attorney General Letitia James arrived at court shortly after Trump Jr. and took a seat in the courtroom with her staff.

Former Trump Organization CFO Allen Weisselberg testified that Trump's triplex apartment in Trump Tower is 10,996 square feet -- which is a third the size that Trump claimed on financial documents.

In October 1994, Trump signed a document that certified his penthouse triplex is 10,996 square feet, but his statements of financial condition for several years beginning in 2012 listed the apartment as 30,000 square feet.

An attorney with the New York attorney general's office showed the page with Trump's signature to Weisselberg, who appeared to struggle to explain the discrepancy.

"It was always in my mind a de minimis asset on the statement of financial condition," Weisselberg said. "I never even thought about the apartment."

Louis Solomon of the attorney general's office confronted Weisselberg with emails from Forbes magazine seeking clarity about the apartment's size, as well as a letter signed by Weisselberg certifying the 30,000 square foot figure to the Trump Organization's then-accountant, Mazars USA.

Weisselberg offered a lengthy take on the discrepancy, prompting Judge Arthur Engoron to intercede.

"Your role is to answer the questions, not to give speeches. Please just answer the questions," Engoron said.

"Forbes was right, the triplex was actually only 10,996, right?" Solomon asked.

"Right," Weisselberg finally conceded.

"I've been through quite a bit the last two years," Weisselberg said at one point during the morning's questioning. The former CFO moved to Florida following three months in jail after he pleaded guilty last year to criminal fraud charges and subsequently testified against the Trump Organization.