Two topics grace our second issue of Topics in Cognitive Science (topiCS) for 2020; (a) Lying in Logic, Language, and Cognition organized and edited by Hans van Ditmarsch (CNRS), Petra Hendriks (Rijksuniversiteit Groningen), and Rineke Verbrugge (Rijksuniversiteit Groningen), and (b) the Cultural Evolution of Cognition organized and edited by Sieghard Beller (formerly of the University of Bergen, Norway), Andrea Bender (University of Bergen), and Fiona Jordan (University of Bristol, UK).

Ditmarsch, Hendriks, and Verbrugge bring us seven stimulating papers, each of which looks at various aspects of the human trait of lying. Puns and various other bad jokes aside, I can honestly say that this is a very interesting and wide‐ranging topic, and I sincerely recommend it to our community. I also remind our community that, thanks to our publisher, the introductions written by our Topic Editors are available as free downloads to all.

Our second topic is equally great and stimulating if dogged by a certain misfortune. It is quite clear that the influence of culture on cognition and the changes in that influence as culture evolves do not receive much attention in our research and theories. Hence, the papers in this topic are doubly welcomed: once for their excellence in scholarship and once for bringing a wide‐range of methodologies and topics to their study of human culture. Left to the afterword is Keith Sterelny's interesting commentary on “Tough Questions, Hard Problems, Incremental Progress.”

As a sad endnote to this introduction, as many but not all readers will know, Sieghard Beller died while the Cultural Evolution of Cognition topic was being written and edited. This work clearly shows his mark as does the journal, topiCS. Indeed, with the publication of this issue, topiCS is now honored to have been the recipient of three of Professor Beller's organizing efforts. The first, “Should Anthropology Be Part of Cognitive Science?” was published in volume 4, issue 3 (2012). The second, “Exploring Cognitive Diversity: Anthropological Perspectives on Cognition” appeared in volume 7, issue 4 (2015). Of course, the volume 12, issue 2 (2020) is the one before you. Sieghard's work for topiCS has always been a team effort with his wife and colleague Andrea Bender and these two have been joined by Douglas Medin in their first topic (2012) and Fiona Jordan for this one.

To change topics, we remind our readers that, as always, our publisher, Wiley‐Blackwell, allows us to offer the Topic Editors' introduction to their topics to all of our readers as a free download.

To our readers, keep searching and reading topiCS for our high‐quality, curated collections of papers on timely topics of interest to the broad cognitive science community.

topiCS encourages letters and commentaries on all topics and proposals for new topics. Letters are typically 400–1,000 words (maximum of two published pages) and will be published without abstract or references (possibly 1–2 but usually none). Commentaries are often solicited by Topic Editors prior to the publication of their topic. However, commentaries after publication are also considered and should range between 1,000 to 2,000 words. Most commentaries would not have an abstract and would not include many references.

The Executive Editor and the Senior Editorial Board (SEB) members are constantly searching for new and exciting topics for topiCS. Feel free to open communications with a short note to the Executive Editor (email: wayne.gray.cogsci@gmail.com) or an SEB member (SEB members are listed under the Editorial Board heading on the publisher's homepage for topiCS (http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1756‐8765/homepage/EditorialBoard.html).

我们2020 年第二期认知科学主题 (topiCS) 中有两个主题；(a) 《逻辑、语言和认知中的谎言》由 Hans van Ditmarsch (CNRS)、Petra Hendriks (Rijksuniversiteit Groningen) 和 Rineke Verbrugge (Rijksuniversiteit Groningen) 组织和编辑，以及 (b) 《认知的文化进化》由Sieghard Beller（前挪威卑尔根大学）、Andrea Bender（卑尔根大学）和 Fiona Jordan（英国布里斯托大学）。

Ditmarsch、Hendriks 和 Verbrugge 为我们带来了七篇激动人心的论文，每一篇都着眼于人类撒谎特征的各个方面。抛开双关语和各种其他糟糕的笑话不谈，我可以诚实地说，这是一个非常有趣且范围广泛的话题，我真诚地向我们的社区推荐它。我还提醒我们的社区，感谢我们的出版商，我们的主题编辑撰写的介绍可供所有人免费下载。

如果我们受到某种不幸的困扰，我们的第二个主题也同样伟大和刺激。很明显，文化对认知的影响以及这种影响随着文化的演变而发生的变化在我们的研究和理论中并没有受到太多关注。因此，该主题的论文受到双重欢迎：一次是因为他们在学术上的卓越表现，一次是因为他们为人类文化的研究带来了广泛的方法论和主题。后记是基思·斯特雷尼 (Keith Sterelny) 对“棘手问题、难题、渐进进展”的有趣评论。

作为本引言的一个悲伤的尾注，许多（但不是所有）读者都知道，西格哈德·贝勒（Sieghard Beller）在撰写和编辑“认知的文化进化”主题时去世。这项工作清楚地表明了他的标记，主题期刊TopiCS也是如此。事实上，随着本期的出版，topiCS现在很荣幸成为 Beller 教授的三项组织工作的接受者。第一个问题是“人类学应该成为认知科学的一部分吗？” 发表于第 4 卷第 3 期（2012 年）。第二篇《探索认知多样性：人类学的认知视角》出现在第 7 卷第 4 期（2015 年）。当然，你面前的就是第 12 卷第 2 期（2020 年）。Sieghard 的topiCS工作始终是与他的妻子和同事 Andrea Bender 的团队合作，Douglas Medin 和 Fiona Jordan 也加入了他们两人的第一个主题（2012 年）。

为了改变主题，我们提醒读者，一如既往，我们的出版商 Wiley-Blackwell 允许我们向所有读者免费下载主题编辑对其主题的介绍。

对于我们的读者来说，请继续搜索和阅读我们高质量、精心策划的论文集，这些论文集涉及广泛的认知科学界感兴趣的及时主题。

topicCS鼓励对所有主题以及新主题的提案发表信件和评论。信件通常为 400-1,000 字（最多出版两页），并且将在没有摘要或参考文献的情况下出版（可能有 1-2 个，但通常没有）。主题编辑通常会在主题发表之前征求评论。不过，出版后的评论也会被考虑在内，评论的字数应在 1,000 至 2,000 字之间。大多数评论不会有摘要，也不会包含很多参考文献。

执行编辑和高级编辑委员会 (SEB) 成员不断为topicCS寻找新的、令人兴奋的主题。请随时与执行编辑（电子邮件：wayne.gray.cogsci@gmail.com）或 SEB 成员（SEB 成员列在出版商的topicCS主页上的编辑委员会标题下）进行简短的交流（http: // /onlinelibrary.wiley.com/journal/10.1111/(ISSN)1756‐8765/homepage/EditorialBoard.html)。