I wrote the following books (in Czech only):

Affinity Photo effectively

Affinity Photo Effectively

An extensive guide to Affinity Photo, which is one of the few real and affordable alternatives to Adobe Photoshop.

Capture One effectively

Capture One Effectively

A complete guide to photo management and editing in the Capture One Pro.

Lightroom effectively

Lightroom Effectively

An extensive set of tips for working efficiently in the Adobe Lightroom.