EnglishWalter Isaacson is on Twitter (X) as @WalterIsaacson, with 522,532 followers and 7,675 posts. It has been on X since April 2009, an account age of 17 years.
Insights
Its strongest tracked day added +537 followers on Jun 24, 2026.
Engagement
Early reading. We have captured 6 original posts for this account, below the 8 we require before treating a median as settled. The numbers above describe what we have seen so far, not a finished profile of the account.
A typical post picks up 172 interactions against 523K followers, an engagement rate of 0.033%. Posts are seen about 25K times each, and 0.677% of those impressions turn into an interaction. That is about 4.86% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 1.6 posts a day over the last 30 days, with activity on roughly 67% of days.
Measured over 6 original posts from a 30-day window, last computed on October 20, 2026.
Full engagement reportFollower growth
Best tracked day: +537 followers on 2026-06-24.
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Bio
Author of biographies of Musk, Jennifer Doudna, Leonardo, Franklin, Einstein, Jobs. Professor @Tulane
Notable followers
The biggest accounts in our directory following @WalterIsaacson.
Walter Isaacson on Twitter (X) - frequently asked questions
- What is the Twitter handle for Walter Isaacson?
- Walter Isaacson posts on Twitter (X) as @WalterIsaacson. The profile is at x.com/WalterIsaacson, and the View on X button at the top of this page opens it.
- How many followers does Walter Isaacson have on Twitter?
- Walter Isaacson (@WalterIsaacson) has 522,532 followers on Twitter (X). The count is refreshed continuously from public data.
- When did Walter Isaacson join Twitter?
- Walter Isaacson joined Twitter (X) in April 2009. The @WalterIsaacson account is 17 years old. Searches for Walter Isaacson age often mean a personal age, which we do not publish. The figure here is the account age only.