An enthusiast duplicate bridge player, I have for years added periodically to my personal summary whatever strikes me as useful. My personal bridge log is now about 60 pages. Writing helps test whether I have learned something, it helps me remember, and it helps me reorganize material in ways that suit my mental models.
Every lawyer in a company learns as they go. They talk to others in their field when they bump into them or meet across the table, they read articles that come across their desk, they satisfy their CLE requirements as best they can – but what they rarely do is set themselves to deliberate study (See my post of May 27, 2008: write down nuggets of learning.). On-the-job training suffices for the large majority, I suspect. Deliberate programs of learning are the great exception.
Are there examples out there of in-house lawyers who keep a learning diary? Or any exemplary autodidacts who pick a reading list and diligently summarize what they get from the books or articles? Any that create a living, growing manuscript of what they have learned in their field?