Contact me


Got an idea? Have a question? I’d love to learn and share!

I prefer blog comments, Twitter, e-mail, text messages, then phone calls (+1 416 823 2669 – cellphone), in that order. If it’s urgent, call me on my cellphone or send me a text message. There may be a delay for text messages. You can leave voicemail for me at +1 647 547 9436. I check this once a day.

I currently don’t accept advertising, press releases, and other commercial material for my blog. Because this is a personal blog, I rarely accept guest posts (especially not generic ones). If you have something you think really fits my interests, send it to me, explain why it’s a great fit, and we might talk about it.

You can e-mail me at [email protected]. I tend to respond to e-mail weekly.

Possible topics of mutual interest

Some of the less-common things I do are:

I’ve made a commitment to openness and scale. This means:

  • If we have a video or audio interview, I’d like to post the recording on my YouTube channel and the resources on my blog. If you’re okay with it, I’d love to open up the interview or presentation to a live audience as well. I can set up and facilitate a Google Hangout on Air.
  • If we conduct the interview by e-mail, I’ll also post the results on my blog.
  • I’ll share any resources I create under the Creative Commons Attribution license. You retain the copyright to anything substantially created by you, and we can negotiate if things are mixed.
  • If you prefer to be unattributed, I can anonymize the names. If you are open to being linked to, I’ll include a link at my discretion.

If your audience is part of an exclusive membership site or you’re interviewing me for something commercial, that’s all right, as long as my part is freely available (at least on my side). You’re welcome to offer that part as a free preview on your side, which may be a good way to market the rest of your paid content. If you charge a fee for access to your content or have sponsors, please disclose that in your request. We can work out suitable arrangements.

  • Nathaniel Lipkus

    Love the sketchnote of our IP lecture last week! You are super-talented, and your artwork is totally copyrightable … :)

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  • Raghav

    hi, I have been following your sketch from long time,just wanted to say Thank you your work had helped me alot in all aspects of life,you know if you translate your name in hindi(Indian Language) it means (true mouse) :) keep the good work going,Knowledge is Power.

    • sachac

      You’re welcome!

  • MJ

    Hi. Check out, Srinivas Rao. You might like his interview style. Great guests and he creates more content than anyone I’ve ever met.

  • JiEun Lee

    Hello Sacha. First of all, I would like to say huge thank you for everything you have done so far! I recently learned about your blog and sketchnoting. Since then, I have been searching frantically apps, stylus, and other techniques to practice and develop my sketchnote taking and visual recording skills. I currently own Asus 10.1 tablet (1.5 years old). I recently tried out Artflow free version app with standard stylus (not fine tip) and noticed it did skipping (not drawing a smooth line) quite significantly. I wonder if it’s because my skills are still not equipped, because it’s free version, or because my stylus is not thin enough or my tablet itself is too slow.. I want to ask what your opinion is about that. I’m more towards to either my lack of skill but want to know if there is anything I can do to correct that.

    Thank you so much for your great work!

    • sachac

      It’s great that you’re playing around with that! Yeah, responsiveness is a big deal. I ended up giving up on my Asus Transformer tablet because it was just not as smooth as I wanted. The pro version is probably not going to be more optimized than the free one you have; it likely just has additional brushes or features. I’ve heard lots of people be happy about drawing on iPads, but that’s yet more hardware to try out! Maybe paper for now?

      I use a Lenovo X200 tablet PC because that gives me the smoothest experience (with the slight annoyance that Windows 8.1 means I can’t disable touch, so my palm occasionally messes up the drawing; I miss Windows 7). It’s a bigger machine than most people are looking for, though.

      • JiEun Lee

        Thank you very much for such a quick reply! I should have invested more money when I first looking for a tablet to buy, but iPad is such a wonderful device, still to me it is too expensive.. (That’s why I chose Asus 10.1 memopad at first place and it was on sale). For now, I should practice more on paper until I have sufficient money to indulge another gadget. Thank you so much your reply. I hope you keep in touch with you.

  • P Stark

    Hi Sacha. I was going through your emacs config file to get started and it turns out the link to the “Emacs-Starter-Kit” is dead now. It can still be found on

    Here you go:

  • Marica Odagaki

    The link titled “Making the most of my introversion” results in a 404. I’d love to read your writings on that topic.

  • Annette Bater

    Hi Sacha. I tried reaching out to you via email but not sure if I got lost in a backlog of emails. Any chance we can have a quick chat about SAP Young Thinkers and your quantified self work?

  • Ed Warmus

    Hi Sacha, I found some of your stick art figures online and would like to use six of them for a chart presentation. Attached is the chart. Please?

    • sachac

      Sure, feel free. =)

  • Umut Çakır

    Hi Sacha, i am new in emacs and amazed and loved org-mode. But not Mobile-org. What do you think about Mobileorg or using org-mode in android?