Instruction books for Creative Cloud

The problem with books is they're almost outdated before they reach the shelves.  Online resources are more relevant for current product users. 

LinkedIn Learning (formerly Lynda.com) is a good resource for structured courses by knowledgeable instructors. 

Go to your product's Help menu.  F1 Help = the online user guides. 

https://helpx.adobe.com/photoshop/tutorials.html

https://helpx.adobe.com/lightroom-classic/tutorials.html

There's a wealth of good information on YouTube channels like PHLEARN, PTC, BLTV, PixImperfect and others.

Lightroom Tutorials by Julieanne Kost

https://www.jkost.com/lightroom.html

Manuals https://community.adobe.com/t5/the-lounge/start-building-your-2018-cc-library-of-user-manuals-they-re-free-downloads/td-p/9662762?page=1

Otherwise, go to the specific program forums and ask people who use those programs

To find a forum for your program please start at https://community.adobe.com/