X-link to the DRM-free thread for some new bundles:
Humble Book Bundle Work It Out presented by Callisto Media features a selection of DIY health and fitness self-help titles (both physical yoga and strength training, and mental mindfulness/anxiety stuff), plus accompanying nutritional and cookbooks (mostly paleo) from the eponymous publisher who's been the spotlight of two previous HB offerings.
Humble Book Bundle Python presented by Packt contains a selection of DIY computer programming books and videos focused on that language by the eponymous publisher, who've been quite generous about giving us a
free daily book for the past couple of years. There's also a discount coupon for their Mapt subscription online library service at the $1 tier.