Errata

I feel that the great and useful content of the book suffers from having a poor table of contents because of ambiguous, sometimes nonsensical chapter titles.

I enjoy when technical information is portrayed with life and humour, but seeing as the table of contents is the only tool for searching in a physical book (apart from flipping through 800 pages), I think this part should be as precise as possible.

The reader should not have to interpret the meaning of the chapter titles and be required to keep in memory what the chapter or subchapter _actually_ was about.

There is often a good descriptive text displayed right under the chapter title, which in my opinion would serve much better as the actual title;

Some examples:
1)
In table of contents: A New Point of View
Description text: Cropping Embedded SVG Files

2)
In table of contents: Seeing Double
Description text: Reusing Content

3)
In table of contents: Filling Up to Full
Description text: The fill Property, Gradients, and Patterns

In all cases throughout the book, the secondary descriptive text does a better job of conveying what information the chapter contains.

Like I said in the beginning; the book is full of useful information and you've done a great job of putting it all together, but I had to mark pages and chapters physically with page markers to make it truly usable as a daily reference.