Walcott joined Arsenal in January 2006, and the forward spent his first year-and-a-half at the club with Henry.
The England international was handed the club’s No 14 shirt, which was famously worn by Henry, in 2008.
Walcott has been likened to the Gunners record-goalscorer ever since – despite struggling to replicate his goal-scoring form.
Arsenal star Theo Walcott has revealed how Thierry Henry has helped him
And the 27-year-old has now revealed how Henry has helped him during his career at the Emirates.
“Thierry is very honest,” Walcott told Arsenal’s youtube channel.
“He has pulled me up a few times and we’ve had just general chats on certain scenarios in matches.
Theo Walcott spotted in Arsenal training ahead of Burnley clash
Sun, January 22, 2017
Express Sport brings you the best pictures from Arsenal's latest training session ahead of Sunday's clash with Burnley (2.15pm)
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Arsenal were hard at work in training on Saturday ahead of today's clash with Burnley
Theo Walcott also played with Thierry Henry during the striker's short-spell at Arsenal in 2012
“It’s a little bit different now the way people defend and everything.
“But just having him take an interest and actually take his time to do that helps.
“He could just avoid it but the fact he will take his time to actually try and help out is obviously great."