Derek Halpern of Social Triggers also offers a free ebook, called "How to Get Your First 5000 Subscribers," and he also has a short but convincing landing page outlining the book's contents.
Derek Halpern of Social Triggers ຍັງສະຫນອງ ebook ຟຣີ, ເອີ້ນວ່າ "ວິທີການຮັບຈອງ 5000 ຄັ້ງທໍາອິດຂອງທ່ານ," ແລະລາວຍັງມີຫນ້າດິນສັ້ນແຕ່ convincing outlining ເນື້ອໃນຂອງປື້ມ.