In a look ahead at a week of Cambridge and Somerville events, the vibe is strangely spooky with a Third Annual “Hafoween,” Crypt Night, Zombie Prom and Here Come the Mummies performing, but there’s also Arab American and Japanese festivals, a Glowball “anti-gala,” Taylor Swift trivia and comedian Emma Willmann.

In a look ahead at a week of Cambridge and Somerville events, there’s Paul Giamatti’s “Chinwag” podcast, The Bread and Puppet Theater, Record Store Day, “Secret Sounds of Ponds” and other Earth-related events, cake decorating and Shakespeare’s 460th Birthday.

In a look ahead at a week of Cambridge and Somerville events, there’s Sri Lankan cooking, Susanna Kaysen and “Girl Interrupted” a “Little Prince” opera, a Patriots Day colonial fair, Space Week, Grolier Poetry history, a bluegrass festival and a Flat Top Johnny’s reopening pool party.

In a look ahead at a week of Cambridge and Somerville events, Jason Mantzoukas does improv comedy, Angélique Kidjo performs, there’s an archaeology fair, advice on how to run the Boston Marathon, the answer to “Can we grow buildings?” and an all-clarinet band.

In a look ahead at a week of Cambridge and Somerville events, there’s poet Nikki Giovanni, sex revolutionary Candida Royalle, joke fests and mystery comedy, new plays and folk metal, “Dope Science,” a tribute to Lana Del Rey and “Essays in Praise of Excess.” 

Public meetings this week look at resolving conflicts in Ball and Magoun squares and South Medford where parcels split at city lines and zoning districts; the future of the Armory arts building; a Massachusetts Commission Against Discrimination backlog; and more.

In a look ahead at a week of Cambridge and Somerville events, there’s the tiny-piano-using Chromic Duo and Cambridge Symphony Orchestra; robots, AI and eclipse prep; Joie de Vivre, horrors of the sea, edible insects and more; and Brexit and tech writer Kara Swisher.

In a look ahead at a week of Cambridge and Somerville events, learn how to make sound effects, see a Glow Show with the MIT Spinning Arts Club, play a board game about Puerto Rico. take part in a pun competition and enjoy music, dance, storytelling and poetry.

Sean O’Donovan, an attorney and former Somerville alderman and School Committee member, was sentenced Wednesday to two years in prison plus three years of supervised release and will need to pay a $150,000 fine.

In a look ahead at a week of Cambridge and Somerville events, there are a few ways to mark MLK Day, a CultureHouse opening party, Hans Zimmer soundtracks by candlelight, parties with cyberpunk and 1970s themes, magic and aliens, a new Text and Tone Festival and the Boston Typewriter Orchestra.