| Pyramid of Refactoring |  | 2019 | DevCrowd | Poland, Szczecin |
| Poker Hands - Refactoring into Chain of Responsibility Read the summary in English |  | 2019 | JBCNConf | Spain, Barcelona (English) |
| Pyramid of Refactoring Watch online in Polish |  | 2019 | Boiling Frogs | Poland, Wrocław |
| Refactoring in Business World Watch online in Polish |  | 2018 | Confitura | Poland, Wrocław |
| Refactoring Out of God Object Antipattern Read summary in English | | 2018 | JBCNConf | Spain, Barcelona (English) |
| Refactoring in Business World Watch online in Polish | | 2018 | Boiling Frogs | Poland, Wrocław |
| Refactoring in Business World Watch online in English |  | 2017 | JDD | Poland, Kraków (English) |
| Tests Refactoring Read summary in English | | 2017 | JBCNConf | Spain, Barcelona (English) |
| Inheritance or Delegation Read summary in English | | 2016 | JBCNConf | Spain, Barcelona (English) |
| Effective Refactoring Watch online in English | | 2014 | JDD | Poland, Kraków (English) |
| Effective Refactoring Watch online in Polish | | 2014 | Confitura | Poland, Kraków |
| Effective Refactoring Read summary in English |  | 2014 | 33rd Degree (currently Devoxx.pl) | Poland, Kraków |