Here is a lits of errata or comments for the 1st Edition of the book:

Content issues:
p.181-183. Section 7.2. As for conversations with some experts in animal cognition, it seems that the experiments from Ryabko and Reznikova have not been reproduced. They also look incredible for the insect cognition community. See for instance, the following discussion here: https://insectessociaux.com/2017/11/14/the-curious-case-of-antennating-ants-telling-each-other-where-to-go/ Of course, this does not mean that the experiments are wrong, until more systematic replication efforts fail, but we should be careful of their interpretation for the moment. It seems that the community in AI and information theory embraced the results because they are consistent with some principles of information communication and learning (e.g., Li & Vitányi's book also covers the story), and it also seems that Reznikova has made an effort to show details of how the experiments were conducted (http://reznikova.net/research/ant-language/). Perhaps the brains and communication channels in ants are not really capable of or compatible with this kind of compressed transfer of information. In any case, if compression does not really happen in ant communication, it would just turn out to be a beautiful story (showing iteration or recursion in ant cognition) and an intuitive way of presenting Kolmogorov complexity. As for the impact on my book, this section is not central for any of its main thesis, as there are other examples of compression in animal cognition and especially in humans, and will probably be extensively rewritten in future editions.

Format issues:
p.V., l.-1: "Factor" shouldn't be in italics.
p.37, \Phi in line 3 and two lines above eq. 2.2 are in round and italics respectively, and also one on page 38. They should all have the same format.

Typos:
p.12, l.2 : "the one who" -> "the one that"
p.15, l.-5: "the theory that some parts" -> "a theory stating that some parts"
p.33, l.-3: "Panel 6.1" should be "Panel 2.1"


The author, June 2018.