Katherine Boyarsky

Katherine is the co-founder and CMO of Datalily, a creative content marketing and research studio. She’s a word person with a background in strategic content, journalism, and brand campaigns, and she’s collaborated with leading companies, including Fortune 500 brands and tech unicorns. She’s based in the Boston area and you can find her hanging with her dog or working from breweries.

Posts by this author

Katherine Boyarsky

Jun 26, 2026

When to send Black Friday emails

Timing can make or break your Black Friday success. Discover when to send Black Friday emails, SMS, and WhatsApp messages to drive engagement, maximize revenue, and win the inbox—backed by Klaviyo’s latest consumer and platform data.

Katherine Boyarsky

Jun 16, 2026

Why BFCM is a big deal

Discover why BFCM is no longer just a sale—it’s a strategic growth opportunity. Explore the top benefits of Black Friday Cyber Monday 2026, from list growth and loyalty to omnichannel engagement and AI-powered personalization.

Katherine Boyarsky

Jun 1, 2026

9 creative 4th of July marketing ideas

4th of July is one of summer's biggest revenue moments. See 9 brand examples that use email, SMS, and AI to drive sales and build lasting customer loyalty.

Katherine Boyarsky

May 14, 2026

Father's Day marketing ideas we're obsessed with

Here are 12 sources of inspiration to help you plan your next Father’s Day email or SMS campaign outside the box.

Katherine Boyarsky

Apr 14, 2026

The future of marketing personalization

Discover what consumers expect from marketing personalization in 2026, how AI is raising the bar, and what your brand needs to deliver 1:1 experiences at scale.

Katherine Boyarsky

Apr 13, 2026

How does Gen Z use AI?

New research reveals how Gen Z uses AI to shop, search, and discover brands, and what it means for your personalization and content strategy in 2026.

Katherine Boyarsky

Apr 13, 2026

9 Memorial Day marketing ideas

We’ve scoured Klaviyo’s massive database to come up with 9 of the most common and effective marketing ideas for your Memorial Day campaign.

Katherine Boyarsky

Mar 30, 2026

10 Mother's Day marketing ideas

Get inspired by 10 real-brand Mother's Day marketing examples, plus tips to drive sales across email, SMS, and more with Klaviyo.

Katherine Boyarsky

Mar 26, 2026

7 of the best CRM integrations

Explore 7 best CRM integrations for B2C brands, from POS to analytics, and see how Klaviyo unifies customer data to personalize every touchpoint for retention.