Ajostu first took the guru’s chair for the topic of Charisma in 2019. He has now taken the guru’s chair 10 times.
| Date | Topic | Column | Blog | |
|---|---|---|---|---|
| 1 | Oct. 23, 2019 | Charisma | Column | Blog |
| 2 | Nov. 25, 2020 | Eureka Moments | Column | Blog |
| 3 | June 8, 2021 | Horizons | Column | Blog |
| 4 | Jan. 19, 2022 | Eternity | Column | Blog |
| 5 | Jan. 17, 2023 | Distractions, Diversions & Digressions | Column | Blog |
| 6 | Apr. 19, 2023 | Searching, Seeking & Quests | Column | Blog |
| 7 | Oct. 11, 2023 | Songs Using Acronyms | Column | Blog |
| 8 | Feb. 14, 2024 | Treasure | Column | Blog |
| 9 | May 8, 2024 | Pockets | Column | Blog |
| 10 | Nov. 6, 2024 | Japan | Column | Blog |