You can use this page to email Uros Calakovic about PySide6 Blueprints.
About the Book
A practical guide to developing desktop applications using PySide6, the Python bindings for Qt6. It covers essential topics like widgets, layouts, signals, slots, model-view programming and multithreading through code examples and explanations. It's about ~20% done and all that is written is available as the free sample download.