How long should a thread hook be?

Short enough to read without tapping 'See more.' One or two lines with a strong promise or curiosity gap. End with a thread emoji 🧵 to signal more content below.

What makes a thread hook fail?

Being too vague, too long, or not promising enough value. 'Here are some thoughts on marketing' is weak. 'I spent $500K on X ads. Here's what actually worked' is strong.

Thread Hook

The thread hook is the single most important tweet in any thread. It determines whether users click to read the rest or scroll past. A strong hook can make a mediocre thread perform well; a weak hook kills even brilliant content. Proven thread hook patterns: specific number + promise ('I analyzed…